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Results for "

amide bond

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Acyltransferase (1) ADC Linker (7) Amino Acid Derivatives (1) Antibiotic (2) Apoptosis (2) Autophagy (1) Bacterial (4) Beta-lactamase (2) Biochemical Assay Reagents (121) Cannabinoid Receptor (1) Caspase (1) Cathepsin (3) Ceramidase (1) DNA/RNA Synthesis (2) Drug Derivative (1) Drug Intermediate (4) Endogenous Metabolite (4) Fluorescent Dye (13) Isotope-Labeled Compounds (1) Liposome (6) MDM-2/p53 (1) PROTAC Linkers (19) Radionuclide-Drug Conjugates (RDCs) (1) Reference Standards (2) Ser/Thr Protease (2)
By Research Areas:	Cancer (28) Cardiovascular Disease (3) Infection (6) Metabolic Disease (4) Neurological Disease (3)
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Oligonucleotides:	Pegylated Lipids (4) Phospholipids (1) Cationic Lipids (2) Polymers (1)

189

Inhibitors & Agonists

Fluorescent Dyes

Biochemical Assay Reagents

Peptides

Natural
Products

Isotope-Labeled Compounds

Click Chemistry

Oligonucleotides

Targets Recommended: FAAH

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-Y0973

BOP hexafluorophosphate	Biochemical Assay Reagents Drug Intermediate	Others
BOP hexafluorophosphate is a phosphonium-type condensing agent. BOP hexafluorophosphate activates the carboxylic acid component to form a highly reactive O-benzotriazole ester (active ester) intermediate, which then reacts with the amino component to form an amide bond (peptide bond). BOP hexafluorophosphate is applicable to solid-phase polypeptide synthesis and nucleoside modification .

HY-174921A

Maleimide-PEG2000-COOH	Biochemical Assay Reagents	Others
Maleimide-PEG2000-COOH is a PEG derivative composed of Maleimide (HY-W007324), PEG units and carboxyl (-COOH). Carboxyl can easily form a stable amide bond with amino groups or an ester bond with hydroxyl groups. Maleimide forms a stable thioether bond with sulfhydryl (-SH) .

HY-W717743

DOTAM-mono-acid	Biochemical Assay Reagents Radionuclide-Drug Conjugates (RDCs)	Others
DOTAM-mono-acid is a chelator with DOTAM as its core. DOTAM-mono-acid contains a carboxylic acid group that can be activated to form an amide bond with the N-terminus of a peptide. DOTAM-mono-acid can form peptide conjugates for radiometal labeling .

HY-W1048918A

mPEG5000-CM mPEG5000-COOH	Biochemical Assay Reagents	Others
mPEG5000-CM (mPEG5000-COOH) has a reactive carboxyl group (-COOH) attached to the terminal site of the structure, which can form a stable amide bond with the amino group or an ester bond with the hydroxyl group. mPEG5000-CM can be used for drug delivery .

HY-W591461

DSPE-PEG-COOH, MW 2000 1 Publications Verification	Liposome	Cancer
DSPE-PEG-COOH, MW 2000 is a phospholipid polyPEG which can be used to prepare liposomes or nanoparticles. The terminal carboxylic acid can react with primary amine groups to form a stable amide bond.

HY-W1123939C

Silane-PEG5000-COOH	Biochemical Assay Reagents	Others
Silane-PEG5000-COOH can be used to modify proteins, peptides and other materials with active groups. The carboxyl group (-COOH) can easily form a stable amide bond with the amino group, and can also form an ester bond with the hydroxyl group. Silane-functionalized PEG (Silane-PEG-X) can be used to modify glass, silicon, etc .

HY-P2958

Choloylglycine hydrolase	Biochemical Assay Reagents	Metabolic Disease
Choloylglycine hydrolase is a conjugated bile salt hydrolase that catalyses the hydrolysis of amide bond in conjugated bile acids. Choloylglycine hydrolase is expressed by intestinal microbiota. Choloylglycine hydrolase can be studied in research on type 2 diabetes .

HY-W1048549A

HOOC-PEG2000-SH HOOC-PEG2000-Thiol	Biochemical Assay Reagents	Others
HOOC-PEG2000-SH (HOOC-PEG2000-Thiol) is a reactive thiol PEG derivative with a terminal carboxyl group. The carboxyl group can react with amine or hydroxyl groups to form a stable amide bond or an unstable ester bond. The PEG linkage between the thiol and carboxyl groups has good water solubility, flexible linker distance and higher stability .

HY-D2751

BP Fluor 488 cadaverine	Fluorescent Dye	Others
BP Fluor 488 Cadaverine is a carboxyl/carbonyl reactive building block used widely to modify carboxylic groups in the presence of activators (e.g. EDC or DCC) or activated esters (e.g. NHS esters) through a stable amide bond.

HY-101884A

Biotinylated-D-lysine TFA	Biochemical Assay Reagents	Neurological Disease
Biotinylated-D-lysine TFA is a conjugate of _L-biotin and _D-lysine, where the carboxylate of _L-biotin is coupled with the ϵ-amine of _D-lysine via a secondary amide bond. Biotinylated-D-lysine TFA is an isomer of the neuroanatomical tracer Biocyte.

HY-169794

N-Palmitoyl-phenylalanine	DNA/RNA Synthesis	Others
N-Palmitoyl-phenylalanine is an N-acyl amide that contains the long-chain saturated fatty acid Palmitic acid (HY-N0830) conjugated via an amide bond to the essential amino acid L-Phenylalanine (HY-N0215). N-Palmitoyl-phenylalanine inhibits pre-mRNA splicing in HeLa cell nuclear lysates (IC₅₀ ＞ 400 μM) but has no splicing activity in intact HeLa cells .

HY-P2498A

Cathepsin D and E FRET Substrate acetate	Cathepsin	Cancer
Cathepsin D and E FRET Substrate acetate is a fluorogenic substrate for cathepsins D and E and not for B, H or L. The cleavage occurs at the Phe-Phe amide bond resul. Cathepsin D and E FRET Substrate is a valuable tool for routine assays and for mechanistic studies on cathepsins E and D .

HY-W440706

Cholesterol-PEG2000-alcohol	Liposome	Cancer
Cholesterol-PEG2000-alcohol is a pegylated lipids which can be used for preparation of liposome or nanoparticle. The lipophilic moiety can encapsulate hydrophobic drugs whereas the hydrophilic PEG chain helps the overal water solubility of the micelles. The amine can react with an activated NHS ester to form a stable amide bond.

HY-W579377

Pantoic acid sodium	Drug Intermediate	Others
Sodium pantoate is a biosynthetic intermediate. Sodium pantoate is generated via hydroxymethylation of α-ketoisovalerate followed by reduction. Sodium pantoate combines with β-alanine via an amide bond to form pantothenic acid. Pantothenic acid has important biological significance .

HY-P4332

Boc-Glu(OBzl)-Ala-Arg-AMC	Fluorescent Dye Ser/Thr Protease	Cardiovascular Disease
Boc-Glu(OBzl)-Ala-Arg-AMC is a fluorogenic substrate for coagulation factor XIa and trypsin. The cleavage of the amide bond between arginine and the methylcoumarin amide group releases fluorescent 7-Amino-4-methylcoumarin (HY-D0027) .

HY-W440927

Stearic acid-PEG2000-NHS	Liposome	Others
Stearic acid-PEG2000-NHS is an amphiphatic PEG polymer which forms micelles in an aqueous solution for drug-loaded nanoparticles. The NHS ester is reactive with amine to form a stable amide bond. Reagent grade, for research purpose.

HY-P2498

Cathepsin D and E FRET Substrate	Cathepsin	Others
Cathepsin D and E FRET Substrate is a fluorogenic substrate for cathepsins D and E and not for B, H or L. The cleavage occurs at the Phe-Phe amide bond resul. Cathepsin D and E FRET Substrate is a valuable tool for routine assays and for mechanistic studies on cathepsins E and D .

HY-P11325

Ac-RR-AFC TFA	Cathepsin Fluorescent Dye	Others
Ac-RR-AFC TFA is a Cathepsin B fluorogenic substrate (Ex=400 nm, Em=505 nm). Cathepsin B activity in cells lysates is determined by measuring cleavage of Ac-RR-AFC TFA and its cleavage occurs at the RR-AFC amide bond. Ac-RR-AFC TFA can be used for activity assays and mechanistic studies on cathepsin B .

HY-133883

Cyanine7.5 amine	Fluorescent Dye	Others
Cyanine7.5 amine is a near-infrared Cy7.5-based dye and also a substrate for amide bond coupling (Ex/Em = 788 nm/808 nm). Cyanine7.5 amine contains a free amino group and can be used for coupling with activated carboxylic acid derivatives .

HY-W1048549C

HOOC-PEG5000-SH HOOC-PEG5000-Thiol	Biochemical Assay Reagents	Others
HOOC-PEG5000-SH (HOOC-PEG5000-Thiol) is a reactive thiol PEG derivative with a terminal carboxyl group. The carboxyl group can react with amine or hydroxyl groups to form a stable amide bond or an unstable ester bond. The PEG linkage between the thiol and carboxyl groups has good water solubility, flexible linker distance and higher stability .

HY-W1048547J

HOOC-PEG40000-NH2 HOOC-PEG40000-Amine	PROTAC Linkers	Others
HOOC-PEG40000-NH2 (HOOC-PEG40000-Amine) is a heterobifunctional PEG crosslinker that can be used to attach functional PEG to biomolecules, particles, and other surface materials. The carboxyl group reacts with the amine group to form a stable amide bond. It can also react with the hydroxyl group to form an unstable ester bond. On the other hand, the amine group can be used to react with many amine-reactive groups, such as succinimidyl NHS esters, aldehydes, etc .

HY-137425

N-Biotinyl-12-aminododecanoic acid	Biochemical Assay Reagents	Others
N-Biotinyl-12-aminododecanoic acid is a compound formed by linking biotin and 12-aminododecanoic acid through an amide bond. N-Biotinyl-12-aminododecanoic acid is used as a biotinylation reagent to test the ligation activity of SimL .

HY-174921B

Maleimide-PEG3400-COOH	Biochemical Assay Reagents	Others
Maleimide-PEG3400-COOH is a PEG derivative composed of Maleimide (HY-W007324), PEG units and carboxyl (-COOH). Carboxyl can easily form a stable amide bond with amino groups or an ester bond with hydroxyl groups. Maleimide forms a stable thioether bond with sulfhydryl (-SH) .

HY-174921C

Maleimide-PEG5000-COOH	Biochemical Assay Reagents	Others
Maleimide-PEG5000-COOH is a PEG derivative composed of Maleimide (HY-W007324), PEG units and carboxyl (-COOH). Carboxyl can easily form a stable amide bond with amino groups or an ester bond with hydroxyl groups. Maleimide forms a stable thioether bond with sulfhydryl (-SH) .

HY-174921

Maleimide-PEG1000-COOH	Biochemical Assay Reagents	Others
Maleimide-PEG1000-COOH is a PEG derivative composed of Maleimide (HY-W007324), PEG units and carboxyl (-COOH). Carboxyl can easily form a stable amide bond with amino groups or an ester bond with hydroxyl groups. Maleimide forms a stable thioether bond with sulfhydryl (-SH) .

HY-P4333

Boc-Glu(OBzl)-Gly-Arg-AMC	Fluorescent Dye	Cardiovascular Disease
Boc-Glu(OBzl)-Gly-Arg-AMC is a fluorogenic substrate for factors IXa and XIIa. The cleavage of the amide bond between arginine and the methylcoumarin amide group releases fluorescent 7-Amino-4-methylcoumarin (HY-D0027) .

HY-W190951

3-((2-(2,2,2-Trifluoroacetamido)ethyl)disulfanyl)propanoic acid	Biochemical Assay Reagents	Others
3-((2-(2,2,2-Trifluoroacetamido)ethyl)disulfanyl)propanoic acid is a cleavable linker containing a carboxylic acid. The terminal carboxylic acid can be reacted with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The disulfide bond can be cleaved via reduction reactions.

HY-W1048918

mPEG1000-CM mPEG1000-COOH	Biochemical Assay Reagents	Others
mPEG1000-CM (mPEG1000-COOH) has a reactive carboxyl group (-COOH) attached to the terminal site of the structure, which can form a stable amide bond with the amino group or an ester bond with the hydroxyl group. mPEG1000-CM can be used for drug delivery .

HY-W800683

4-Azide-TFP-amide-SS-Sulfo-NHS	Biochemical Assay Reagents	Others
4-Azide-TFP-Amide-SS-Sulfo-NHS consists of an aryl azide, a cleavable disulfide bond, and an NHS ester. The aryl azide can be photo-activated with UV light (250 to 350 nm) for conjugation with biomolecules. Fluoro helps to stabilize the free radical intermediate. The NHS ester reacts with amines. The disulfide bond can be cleaved by reducing agents.

HY-134110

N-Methylarachidonamide	Endogenous Metabolite	Metabolic Disease
Anandamide (AEA) is an endogenous cannabinoid that binds to both central cannabinoid (CB1) and peripheral cannabinoid (CB2) receptors. The biological actions of AEA are terminated by cellular uptake and hydrolysis of the amide bond by the enzyme fatty acid amide hydrolase. Arachidonoyl-N-methyl amide is an analog of anandamide that binds to the human central cannabinoid (CB1) receptor with a Ki of 60 nM. It inhibits rat glial gap junction cell-cell communication 100% at a concentration of 50 μM.

HY-W1123939

Silane-PEG-COOH (MW 1000)	Biochemical Assay Reagents	Others
Silane-PEG-COOH (MW 1000) can be used to modify proteins, peptides and other materials with active groups. The carboxyl group (-COOH) can easily form a stable amide bond with the amino group, and can also form an ester bond with the hydroxyl group. Silane-functionalized PEG (Silane-PEG-X) can be used to modify glass, silicon, etc .

HY-134055

Arachidonoyl-N,N-dimethyl amide Arachidonic acid-N,N-dimethyl amide	Cannabinoid Receptor	Metabolic Disease
Anandamide (AEA) is an endogenous cannabinoid that binds to both central cannabinoid (CB1) and peripheral cannabinoid (CB2) receptors. The biological actions of AEA are terminated by cellular uptake and hydrolysis of the amide bond by the enzyme fatty acid amide hydrolase. Arachidonoyl-N,N-dimethyl amide is an analog of anandamide that exhibits weak or no binding to the human central cannabinoid (CB1) receptor (Ki >1 μM). It inhibits rat glial gap junction cell-cell communication 100% at a concentration of 50 μM.

HY-D2764

Difluorocarboxyfluorescein cadaverine, 5-isomer	Fluorescent Dye	Others
Difluorocarboxyfluorescein cadaverine, 5-isomer is a carbonyl reactive building block used to modify carboxylic groups in the presence of activators (e.g. EDC, or DCC) or activated esters (e.g. NHS esters) through a stable amide bond.

HY-W1048549E

HOOC-PEG20000-SH HOOC-PEG20000-Thiol	Biochemical Assay Reagents	Others
HOOC-PEG20000-SH (HOOC-PEG20000-Thiol) is a reactive thiol PEG derivative with a terminal carboxyl group. The carboxyl group can react with amine or hydroxyl groups to form a stable amide bond or an unstable ester bond. The PEG linkage between the thiol and carboxyl groups has good water solubility, flexible linker distance and higher stability .

HY-174364E

Alkyne-PEG20000-COOH	Biochemical Assay Reagents	Others
Alkyne-PEG20000-COOH is a heterobifunctional PEG crosslinker that can be used to attach functional PEG to biomolecules, particles, and other material surfaces. The carboxyl group can react with the amine group to form a stable amide bond .

HY-174364C

Alkyne-PEG5000-COOH	Biochemical Assay Reagents	Others
Alkyne-PEG5000-COOH is a heterobifunctional PEG crosslinker that can be used to attach functional PEG to biomolecules, particles, and other material surfaces. The carboxyl group can react with the amine group to form a stable amide bond .

HY-155070

SRE-II	DNA/RNA Synthesis Apoptosis	Cancer
SRE-II, an amide derivative, is an activatable photosensitizer for photodynamic cancer research with decreased fluorescence and photosensitizing capabilities. SRE-II can be further converted into the active photosensitizer SDU Red via carboxylesterase-catalyzed amide bond cleavage. SRE-II induces DNA damage and cell apoptosis in the presence of light. SRE-II can act as a promising theranostic agent for triple-negative breast cancer .

HY-116833

4-Chloro-3,5-dimethylphenoxyacetic acid	Drug Derivative	Metabolic Disease
4-Chloro-3,5-dimethylphenoxyacetic acid (compound 602 UC) is a product of masked amide bond hydrolysis of auxin analog 602 (compound 602). Auxin can effectively stimulate hypocotyl growth in wild-type seedlings .

HY-W800825

Octadecanedioic acid mono-L-carnitine ester	Liposome	Cancer
Octadecanedioic Acid Mono-L-carnitine ester is a cationic lipid which may be used in combination with other lipids in the formation of lipid nanoparticles (LNPs). Its terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. HATU) to form a stable amide bond.

HY-W888710D

FA-PEG2000-COOH Folate-PEG2000-COOH	Biochemical Assay Reagents	Others
FA-PEG2000-COOH (Folate-PEG2000-COOH) is a Folic acid (HY-16637)-modified PEG derivative containing a carboxyl group (-COOH). The carboxyl group can easily form a stable amide bond with an amino group, or an ester bond with a hydroxyl group. Folic acid (-FA) has a high affinity for the folate receptor and can be used to target cell membrane receptors for drug delivery .

HY-W888710E

FA-PEG3400-COOH Folate-PEG3400-COOH	Biochemical Assay Reagents	Others
FA-PEG3400-COOH (Folate-PEG3400-COOH) is a Folic acid (HY-16637)-modified PEG derivative containing a carboxyl group (-COOH). The carboxyl group can easily form a stable amide bond with an amino group, or an ester bond with a hydroxyl group. Folic acid (-FA) has a high affinity for the folate receptor and can be used to target cell membrane receptors for drug delivery .

HY-W190752

m-PEG13-acid	Biochemical Assay Reagents	Others
m-PEG13-acid is a PEG linker containing a terminal carboxylic acid. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The hydrophilic PEG spacer increases solubility in aqueous media.

HY-W800676

DBCO-N-bis(PEG4-acid)	Biochemical Assay Reagents	Others
DBCO-N-bis(PEG4-acid) is a branched click chemistry reagent. The DBCO group enables copper-free Click Chemistry reactions. carboxylic acid groups allows for reactions with primary amine groups using activators such as EDC or HATU to form a stable amide bond.

HY-W800632

4-Azide-TFP-amide-SS-propionic acid	Biochemical Assay Reagents	Others
4-Azide-TFP-Amide-SS-propionic acid contains an aryl azide, a cleavable disulfide bond, and a carboxylic acid. The aryl azide can be photo-activated with UV light (250 to 350 nm) for conjugation with biomolecules. Fluoro helps to stabilize the free radical intermediate. The carboxylic acid can be reacted with amines in the presence of an activator to form an amide bond. The disulfide bond can be cleaved via reducing agents.

HY-W800648

Mal-PEG2-amide	Biochemical Assay Reagents	Others
Mal-PEG2-Amide is a PEG linker with a maleimide group which can react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol.

HY-174904

Dde Biotin-PEG4-COOH	Biochemical Assay Reagents	Others
Dde Biotin-PEG4-COOH is a PEG derivative composed of Biotin, 5 PEG units, and a carboxyl group (-COOH). Biotin can form a stable non-covalent bond with streptavidin. The carboxyl group can easily form a stable amide bond with the amino group, and can also form an ester bond with the hydroxyl group.

HY-W190916

3-((2-(4-Azidobenzamido)ethyl)disulfanyl)propanoic acid	Biochemical Assay Reagents	Others
3-[[2-[(4-azidobenzoyl)amino]ethyl]dithio]propanoicacid contains an aryl azide, a cleavable disulfide bond, and a carboxylic acid. The aryl azide can be photo-activated with UV light (250 to 350 nm) for conjugation with biomolecules. The carboxylic acid can be reacted with amines in the presence of an activator to form an amide bond. The disulfide bond can be cleaved via reducing agents.

HY-W700975

12-Ketostearic acid sodium	Biochemical Assay Reagents	Others
12-Ketostearic acid sodium is a synthetic membrane probe that binds to the hydrophobic regions in lipid bilayer membranes. The terminal carboxylic acid can react with primary amine groups to form a stable amide bond.

HY-W1048918B

mPEG10000-CM mPEG10000-COOH	Biochemical Assay Reagents	Others
mPEG10000-CM (mPEG10000-COOH) has a reactive carboxyl group (-COOH) attached to the terminal site of the structure, which can form a stable amide bond with the amino group or an ester bond with the hydroxyl group. mPEG10000-CM can be used for drug delivery .

HY-W1048918D

mPEG40000-CM mPEG40000-COOH	Biochemical Assay Reagents	Others
mPEG40000-CM (mPEG40000-COOH) has a reactive carboxyl group (-COOH) attached to the terminal site of the structure, which can form a stable amide bond with the amino group or an ester bond with the hydroxyl group. mPEG40000-CM can be used for drug delivery .

Cat. No.	Product Name	Type

HY-117401

5-Dodecanoylaminofluorescein

Fluorescent Dyes

5-Dodecanoylaminofluorescein is an amphipathic (amphoteric) fluorescent probe (Ex/Em = 485 nm/515-535 nm), which consists of a hydrophilic fluorescein core and a hydrophobic dodecanoyl group (C12 fatty acid chain) linked by an amide bond. 5-Dodecanoylaminofluorescein is mainly used as an interface-localized radical trapping/indicator probe. Dodecanoylaminofluorescein can be used for the determination of the antioxidant properties of emulsions, or can serve as a lipophilic drug model for the study of passive skin penetration when encapsulated in tyrosine-derived nanospheres .

HY-D2751

BP Fluor 488 cadaverine	Fluorescent Dyes
BP Fluor 488 Cadaverine is a carboxyl/carbonyl reactive building block used widely to modify carboxylic groups in the presence of activators (e.g. EDC or DCC) or activated esters (e.g. NHS esters) through a stable amide bond.

HY-D2956

BC-GLA-NHS

CLIP-GLA-NHS

Fluorescent Dyes

BC-GLA-NHS (CLIP-GLA-NHS) is a NHS-labeled CLIP tag, which is an amine-reactive crosslinker and can achieve site-specific protein labeling. The NHS ester of BC-GLA-NHS reacts with the primary amine of the target molecule (such as antibodies, quantum dots) in a pH 7.5-8.5 buffer solution to form a stable amide bond. After coupling, the BC molecule undergoes a nucleophilic substitution reaction with the active site (Cys) of the CLIP-tagged fusion protein, releasing benzylcytosine and forming an irreversible thioether bond, achieving covalent labeling. BC-GLA-NHS can be used for click chemistry labeling .

HY-133883

Cyanine7.5 amine	Fluorescent Dyes
Cyanine7.5 amine is a near-infrared Cy7.5-based dye and also a substrate for amide bond coupling (Ex/Em = 788 nm/808 nm). Cyanine7.5 amine contains a free amino group and can be used for coupling with activated carboxylic acid derivatives .

HY-D2772

5-TAMRA Cadaverine

Fluorescent Dyes

5-TAMRA cadaverine can used to modify carboxylic acid group in the presence of activators (e.g. EDC, or DCC) or activated esters (e.g. NHS esters) through a stable amide bond. It also can be reversibly coupled to aldehydes and ketones to form a Schiff base – which can be reduced to a generate stable amine derivative by sodium borohydride (NaBH4) or sodium cyanoborohydride (NaCNH3). Although the mixed isomers of 5(6)-TAMRA cadaverine is a preferred, routinely used orange-fluorescent dye for staining proteins, it is rearly used for labeling peptides and nucleotides. Purification of 5(6)-TAMRA labeled peptide and nucleotides might be troublesome due to significant signal broadening in HPLC purification. Peptides and nucleotides labeled with a single isomer TAMRA usually give better resolution in HPLC purification that is often required in the conjugation processes.

HY-D2745

BP Fluor 594 NHS ester

Fluorescent Dyes

BP Fluor 594 NHS ester is the most popular tool for modifying proteins or antibodies through the primary amines (Lys), amine-modified oligonucleotides, and other amine-containing biomolecules with BP Fluor 594 label. The labeling occurs most efficiently at pH 7-9 and forms a stable, covalent amide bond. BP Fluor 594 dye can be used for proteins labeling at high molar ratios without significant self-quenching, enabling brighter conjugates and more sensitive detection. BP Fluor 594 is bright, water-soluble, and pH-insensitive from pH 4 to pH 10 red-fluorescent dye with absorption and emission maxima at 590 and 617 nm, respectively. It can be used with the 561 nm and 594 nm laser lines. BP Fluor 594 dye conjugated to a variety of antibodies, peptides, proteins, tracers, and amplification substrates often used for generation of stable signal in imaging and flow cytometry.

HY-D2764

Difluorocarboxyfluorescein cadaverine, 5-isomer	Fluorescent Dyes
Difluorocarboxyfluorescein cadaverine, 5-isomer is a carbonyl reactive building block used to modify carboxylic groups in the presence of activators (e.g. EDC, or DCC) or activated esters (e.g. NHS esters) through a stable amide bond.

HY-D2765

BP Fluor 405 cadaverine

Fluorescent Dyes

BP Fluor 405 Cadaverine is a carbonyl-reactive building block used to modify carboxylic groups in the presence of activators (e.g. EDC or DCC) or activated esters (e.g. NHS esters) through a stable amide bond. Another common application for BP Fluor 405 Cadaverine is cell fixing by treatment with formaldehyde or glutaraldehyde. BP Fluor 405 is a water-soluble, blue-fluorescent dye that is often used in multi-color applications, including flow cytometry and super-resolution microscopy using STORM. Its excitation is ideally suited for the 407 nm spectral line of the krypton laser or the 408 nm violet laser diode.

HY-D2738

BP Fluor 532 NHS ester

Fluorescent Dyes

BP Fluor 532 NHS ester is an amine reactive, yellow-emitting dye routinely used to label proteins or antibodies through primary amines (Lys), amine-modified oligonucleotides, and other amine-containing biomolecules. The labeling occurs most efficiently at pH 7-9 and forms a stable, covalent amide bond. BP Fluor 532 is a bright yellow-fluorescent dye with pH insensitive emission from pH 4 to pH 10. The excitation of BP Fluor 532 is ideally suited for the frequency-doubled Nd:YAG laser line. BP Fluor 532 can be conjugated to a variety of antibodies, peptides, proteins, tracers, and amplification substrates, and is often used for the generation of stable signals in imaging and flow cytometry.

HY-W806655

Cy3.5 carboxylic acid	Fluorescent Dyes
Cy3.5 carboxylic acid is a fluorophore featuring a carboxylic acid. The carboxylic acid is readily attacked by amines to form a stable amide bond. Cy3.5 is a cyanine dye with excitation and emission maxima at 576 nm and 603 nm respectively.

Cat. No.	Product Name	Type

HY-Y0623

N-Hydroxysuccinimide

5+ Cited Publications

HOSu; 1-Hydroxy-2,5-pyrrolidinedione

Biochemical Assay Reagents

N-Hydroxysuccinimide (HOSu; 1-Hydroxy-2,5-pyrrolidinedione) is a covalent crosslinker commonly used in bioconjugation technology with a primary amine group. N-Hydroxysuccinimide reacts with amino groups (-NH2) to form a stable amide bond, which can modify amino-containing biomolecules. N-Hydroxysuccinimide can be used, for example, for protein labeling with fluorescent dyes and enzymes, surface activation of chromatography supports, microbeads, nanoparticles and microarray slides, and chemical synthesis of peptides. N-Hydroxysuccinimide has a wide range of applications in biomaterial synthesis (such as collagen, chitosan crosslinking), drug delivery systems (such as hydrogel preparation) and tissue engineering .

HY-112624B

Dextran T70 (MW 70,000)

Dextran 70; Dextran D70; Dextran T70(MW 64000-76000)

Biochemical Assay Reagents

Dextran 70,000 is a high molecular weight polysaccharide formed by glucose linked by α-(1→6) glycosidic bonds. Dextran 70,000 can expand blood volume through colloidal osmotic pressure effect and inhibit cell adhesion and platelet aggregation through steric hindrance. At the same time, Dextran 70,000 can be used as a drug carrier to achieve targeted delivery through endocytosis. Dextran 70,000 is biologically inert and has low immunogenicity. It can be used for clinical blood volume expansion, anti-thrombotic research, and evaluation of vascular permeability in in vitro experiments. It can also be combined with fluorescent dyes for cell tracking and drug delivery research. The Dextran series of compounds are also natural polysaccharide drug carriers that can be connected to drugs through covalent bonding methods such as ester bonds, amide bonds or click chemistry, or self-assembled to form carriers such as nanoparticles and hydrogels. Dextran is biodegradable and biocompatible, and can achieve targeted delivery and controlled release of drugs. Dextran derivatives can prolong the half-life of drugs, increase local concentrations, and reduce the activity of immune clearance.

HY-79647

Fmoc-OSu

N-(Fmoc-oxy)succinimide

Biochemical Assay Reagents

Fmoc-OSu (N-(Fmoc-oxy)succinimide) is an acylating agent that targets amino groups (-NH2). It can selectively protect the amino groups of amino acids by covalently binding with primary or secondary amines through nucleophilic substitution reactions. Fmoc-OSu forms a stable amide bond with the amino group to avoid side reactions of the amino group in peptide synthesis. It can also be used as a fluorescent labeling reagent to react with glycosylamines for efficient labeling of N-sugar chains. Fmoc-OSu can be used as an Fmoc protection strategy in peptide synthesis, and as a fluorescent labeling and analysis method for N-sugar chains .

HY-112624J

Dextran T4 (MW 4,000)

Dextran 4; Dextran D4; Dextran T4(MW 3200-4800)

Biochemical Assay Reagents

Dextran 4,000 is a mucus rheology modifier. The dextran molecules in Dextran 4,000 can reduce the cross-link density of mucus through osmotic effects and hydrogen bond substitution, and reduce viscoelasticity and improve the mucociliary/cough clearance index by destroying the DNA-mucin network structure in mucus. Dextran 4,000 has the ability to improve the rheological properties and clearance ability of cystic fibrosis (CF) sputum, and can be used in the study of inhalation therapy or aerosol delivery of mucostatic respiratory diseases. The Dextran series of compounds are also natural polysaccharide drug carriers that can be connected to drugs through covalent bonding methods such as ester bonds, amide bonds or click chemistry, or self-assembled to form carriers such as nanoparticles and hydrogels. Dextran is biodegradable and biocompatible, and can achieve targeted delivery and controlled release of drugs. Dextran derivatives can prolong the half-life of drugs, increase local concentrations, and reduce the activity of immune clearance .

HY-112624I

Dextran T3 (MW 3,000)

Dextran 3; Dextran D3; Dextran T3(MW 2400-3600)

Biochemical Assay Reagents

Dextran T3 (Dextran 3; Dextran T3(MW 2400-3600)) is a neural tracer and intestinal permeability probe that can move anterogradely and retrogradely in neuronal axons by passive diffusion. Dextran T3 (MW 3,000) is able to permeate across the intestinal epithelial cell membrane in the presence of cholera toxin-induced cytoskeletal disturbance. Dextran T3 (MW 3,000) is used as a fluorescent marker to rapidly label developing neurons (such as Xenopus retinal ganglion cells) and to assess intestinal barrier function. It can be used to study axonal transport in neuroanatomy and permeability changes in intestinal pathophysiology. The Dextran series of compounds are also natural polysaccharide drug carriers that can be connected to drugs through covalent bonding methods such as ester bonds, amide bonds or click chemistry, or self-assembled to form carriers such as nanoparticles and hydrogels. Dextran is biodegradable and biocompatible, and can achieve targeted delivery and controlled release of drugs. Dextran derivatives can prolong the half-life of drugs, increase local concentrations, and reduce the activity of immune clearance .

HY-Y0973

BOP hexafluorophosphate	Biochemical Assay Reagents
BOP hexafluorophosphate is a phosphonium-type condensing agent. BOP hexafluorophosphate activates the carboxylic acid component to form a highly reactive O-benzotriazole ester (active ester) intermediate, which then reacts with the amino component to form an amide bond (peptide bond). BOP hexafluorophosphate is applicable to solid-phase polypeptide synthesis and nucleoside modification .

HY-112624K

Dextran T5 (MW 5,000)

Dextran 5; Dextran D5; Dextran T5(MW 4500-5500)

Biochemical Assay Reagents

Dextran T5 (MW 5,000) is a sulfated polysaccharide anti-apoptotic and autophagic agent. Dextran T5 (MW 5,000) has sulfated groups and interacts with cell membranes by mimicking endogenous glycosaminoglycans, inhibiting the mitochondrial apoptotic pathway and delaying DNA fragmentation to exert anti-apoptotic activity. Dextran T5 (MW 5,000) also promotes the conversion of LC3-I to LC3-II and the formation of autophagosomes to activate the autophagic pathway. Dextran T5 (MW 5,000) can prolong the survival cycle of CHO cells and increase the production of recombinant erythropoietin (EPO). The Dextran series of compounds are also natural polysaccharide drug carriers that can be connected to drugs through covalent bonding methods such as ester bonds, amide bonds or click chemistry, or self-assembled to form carriers such as nanoparticles and hydrogels. Dextran is biodegradable and biocompatible, and can achieve targeted delivery and controlled release of drugs. Dextran derivatives can prolong drug half-life, increase local concentration and reduce immune clearance activity. The Dextran series of compounds are also natural polysaccharide drug carriers that can be connected to drugs through covalent bonding methods such as ester bonds, amide bonds or click chemistry, or self-assembled to form carriers such as nanoparticles and hydrogels. Dextran is biodegradable and biocompatible, and can achieve targeted delivery and controlled release of drugs. Dextran derivatives can prolong the half-life of drugs, increase local concentrations, and reduce the activity of immune clearance .

HY-112624E

Dextran T0.8 (MW 800)

Dextran 0.8; Dextran D0.8; Dextran T0.8(MW 640-960)

Biochemical Assay Reagents

Dextran T0.8 (Dextran 0.8; Dextran T0.8(MW 640-960)) is a food additive with a porous network structure that exhibits strong hydration capacity and low browning activity. Dextran T0.8 (MW 800) can improve the coagulation of dairy products and is used as a prebiotic in baked goods. Dextran T0.8 (MW 800) is non-toxic to HeLa cells at a concentration of ~500 μg/mL and has a low relative browning rate in the Maillard reaction. The Dextran series of compounds are also natural polysaccharide drug carriers that can be connected to drugs through covalent bonding methods such as ester bonds, amide bonds or click chemistry, or self-assembled to form carriers such as nanoparticles and hydrogels. Dextran is biodegradable and biocompatible, and can achieve targeted delivery and controlled release of drugs. Dextran derivatives can prolong the half-life of drugs, increase local concentrations, and reduce the activity of immune clearance .

HY-112624H

Dextran T2 (MW 2,000)

Dextran 2; Dextran D2; Dextran T2(MW 1600-2400)

Biochemical Assay Reagents

Dextran T2 (Dextran 2; Dextran T2(MW 1600-2400)) is a natural high molecular weight polysaccharide, the glycosidic bonds in its structure can be recognized by endo-dextranase and exo-dextranase. Dextran T2 (MW 2,000) breaks the glycosidic bonds in the enzymatic hydrolysis mechanism, releasing products such as D-glucose, Isomaltose (IM₂), and Isomaltotriose (IM₃). Dextran T2 (MW 2,000) can be used as a model substrate to characterize the catalytic properties of dextranase (such as optimal pH, temperature and product specificity), and to study enzymatic mechanism research and polysaccharide degradation pathways in glycobiology. The Dextran series of compounds are also a natural polysaccharide drug carrier, which can be connected to drugs through covalent bonding methods such as ester bonds, amide bonds or click chemistry, or self-assembled to form carriers such as nanoparticles and hydrogels. Dextran is biodegradable and biocompatible, and can achieve targeted delivery and controlled release of drugs. Dextran derivatives can prolong drug half-life, increase local concentration and reduce immune clearance activity .

HY-174921A

Maleimide-PEG2000-COOH	Biochemical Assay Reagents
Maleimide-PEG2000-COOH is a PEG derivative composed of Maleimide (HY-W007324), PEG units and carboxyl (-COOH). Carboxyl can easily form a stable amide bond with amino groups or an ester bond with hydroxyl groups. Maleimide forms a stable thioether bond with sulfhydryl (-SH) .

HY-W717743

DOTAM-mono-acid	Biochemical Assay Reagents
DOTAM-mono-acid is a chelator with DOTAM as its core. DOTAM-mono-acid contains a carboxylic acid group that can be activated to form an amide bond with the N-terminus of a peptide. DOTAM-mono-acid can form peptide conjugates for radiometal labeling .

HY-W1048918A

mPEG5000-CM mPEG5000-COOH	Biochemical Assay Reagents
mPEG5000-CM (mPEG5000-COOH) has a reactive carboxyl group (-COOH) attached to the terminal site of the structure, which can form a stable amide bond with the amino group or an ester bond with the hydroxyl group. mPEG5000-CM can be used for drug delivery .

HY-W1123939C

Silane-PEG5000-COOH	Biochemical Assay Reagents
Silane-PEG5000-COOH can be used to modify proteins, peptides and other materials with active groups. The carboxyl group (-COOH) can easily form a stable amide bond with the amino group, and can also form an ester bond with the hydroxyl group. Silane-functionalized PEG (Silane-PEG-X) can be used to modify glass, silicon, etc .

HY-W1048549A

HOOC-PEG2000-SH HOOC-PEG2000-Thiol	Biochemical Assay Reagents
HOOC-PEG2000-SH (HOOC-PEG2000-Thiol) is a reactive thiol PEG derivative with a terminal carboxyl group. The carboxyl group can react with amine or hydroxyl groups to form a stable amide bond or an unstable ester bond. The PEG linkage between the thiol and carboxyl groups has good water solubility, flexible linker distance and higher stability .

HY-W1048549C

HOOC-PEG5000-SH HOOC-PEG5000-Thiol	Biochemical Assay Reagents
HOOC-PEG5000-SH (HOOC-PEG5000-Thiol) is a reactive thiol PEG derivative with a terminal carboxyl group. The carboxyl group can react with amine or hydroxyl groups to form a stable amide bond or an unstable ester bond. The PEG linkage between the thiol and carboxyl groups has good water solubility, flexible linker distance and higher stability .

HY-W1048547J

HOOC-PEG40000-NH2

HOOC-PEG40000-Amine

Biochemical Assay Reagents

HOOC-PEG40000-NH2 (HOOC-PEG40000-Amine) is a heterobifunctional PEG crosslinker that can be used to attach functional PEG to biomolecules, particles, and other surface materials. The carboxyl group reacts with the amine group to form a stable amide bond. It can also react with the hydroxyl group to form an unstable ester bond. On the other hand, the amine group can be used to react with many amine-reactive groups, such as succinimidyl NHS esters, aldehydes, etc .

HY-116027A

Biotin-PEG10-acid Biotin-PEG10-COOH	Biochemical Assay Reagents
Biotin-PEG10-acid (Biotin-PEG10-COOH) is a biotin-PEG compound containing a carboxyl group (-COOH) that can be used to react with an amine group (NH2) to form a stable amide bond. Biotin-PEG10-acid can be used for protein labeling and drug delivery research .

HY-137425

N-Biotinyl-12-aminododecanoic acid	Biochemical Assay Reagents
N-Biotinyl-12-aminododecanoic acid is a compound formed by linking biotin and 12-aminododecanoic acid through an amide bond. N-Biotinyl-12-aminododecanoic acid is used as a biotinylation reagent to test the ligation activity of SimL .

HY-174921B

Maleimide-PEG3400-COOH	Biochemical Assay Reagents
Maleimide-PEG3400-COOH is a PEG derivative composed of Maleimide (HY-W007324), PEG units and carboxyl (-COOH). Carboxyl can easily form a stable amide bond with amino groups or an ester bond with hydroxyl groups. Maleimide forms a stable thioether bond with sulfhydryl (-SH) .

HY-174921C

Maleimide-PEG5000-COOH	Biochemical Assay Reagents
Maleimide-PEG5000-COOH is a PEG derivative composed of Maleimide (HY-W007324), PEG units and carboxyl (-COOH). Carboxyl can easily form a stable amide bond with amino groups or an ester bond with hydroxyl groups. Maleimide forms a stable thioether bond with sulfhydryl (-SH) .

HY-174921

Maleimide-PEG1000-COOH	Biochemical Assay Reagents
Maleimide-PEG1000-COOH is a PEG derivative composed of Maleimide (HY-W007324), PEG units and carboxyl (-COOH). Carboxyl can easily form a stable amide bond with amino groups or an ester bond with hydroxyl groups. Maleimide forms a stable thioether bond with sulfhydryl (-SH) .

HY-W1048918

mPEG1000-CM mPEG1000-COOH	Biochemical Assay Reagents
mPEG1000-CM (mPEG1000-COOH) has a reactive carboxyl group (-COOH) attached to the terminal site of the structure, which can form a stable amide bond with the amino group or an ester bond with the hydroxyl group. mPEG1000-CM can be used for drug delivery .

HY-W1123939

Silane-PEG-COOH (MW 1000)	Biochemical Assay Reagents
Silane-PEG-COOH (MW 1000) can be used to modify proteins, peptides and other materials with active groups. The carboxyl group (-COOH) can easily form a stable amide bond with the amino group, and can also form an ester bond with the hydroxyl group. Silane-functionalized PEG (Silane-PEG-X) can be used to modify glass, silicon, etc .

HY-W1048549E

HOOC-PEG20000-SH HOOC-PEG20000-Thiol	Biochemical Assay Reagents
HOOC-PEG20000-SH (HOOC-PEG20000-Thiol) is a reactive thiol PEG derivative with a terminal carboxyl group. The carboxyl group can react with amine or hydroxyl groups to form a stable amide bond or an unstable ester bond. The PEG linkage between the thiol and carboxyl groups has good water solubility, flexible linker distance and higher stability .

HY-174364E

Alkyne-PEG20000-COOH	Biochemical Assay Reagents
Alkyne-PEG20000-COOH is a heterobifunctional PEG crosslinker that can be used to attach functional PEG to biomolecules, particles, and other material surfaces. The carboxyl group can react with the amine group to form a stable amide bond .

HY-174364C

Alkyne-PEG5000-COOH	Biochemical Assay Reagents
Alkyne-PEG5000-COOH is a heterobifunctional PEG crosslinker that can be used to attach functional PEG to biomolecules, particles, and other material surfaces. The carboxyl group can react with the amine group to form a stable amide bond .

HY-W888710D

FA-PEG2000-COOH Folate-PEG2000-COOH	Biochemical Assay Reagents
FA-PEG2000-COOH (Folate-PEG2000-COOH) is a Folic acid (HY-16637)-modified PEG derivative containing a carboxyl group (-COOH). The carboxyl group can easily form a stable amide bond with an amino group, or an ester bond with a hydroxyl group. Folic acid (-FA) has a high affinity for the folate receptor and can be used to target cell membrane receptors for drug delivery .

HY-W888710E

FA-PEG3400-COOH Folate-PEG3400-COOH	Biochemical Assay Reagents
FA-PEG3400-COOH (Folate-PEG3400-COOH) is a Folic acid (HY-16637)-modified PEG derivative containing a carboxyl group (-COOH). The carboxyl group can easily form a stable amide bond with an amino group, or an ester bond with a hydroxyl group. Folic acid (-FA) has a high affinity for the folate receptor and can be used to target cell membrane receptors for drug delivery .

HY-140895B

Biotin-PEG10000-Amine Biotin-PEG10000-NH2	Biochemical Assay Reagents
Biotin-PEG10000-Amine (Biotin-PEG10000-NH2) is a biotin PEG polymer containing a free amine group (-NH2). The amine group is reactive with an activated NHS ester via formation of an amide bond. Biotin-labeled compounds can then be linked to avidin or streptavidin for further purification or detection .

HY-W190865

Biotin-PEG5-acid Biotin-PEG5-COOH	Biochemical Assay Reagents
Biotin-PEG5-acid (Biotin-PEG5-COOH) is a biotin-PEG compound containing a carboxyl group (-COOH) that can be used to react with an amine group (NH2) to form a stable amide bond. Biotin-PEG5-acid can be used for protein labeling and drug delivery research .

HY-140895D

Biotin-PEG40000-Amine Biotin-PEG40000-NH2	Biochemical Assay Reagents
Biotin-PEG40000-Amine (Biotin-PEG40000-NH2) is a biotin PEG polymer containing a free amine group (-NH2). The amine group is reactive with an activated NHS ester via formation of an amide bond. Biotin-labeled compounds can then be linked to avidin or streptavidin for further purification or detection .

HY-116027B

Biotin-PEG11-acid Biotin-PEG11-COOH	Biochemical Assay Reagents
Biotin-PEG11-acid (Biotin-PEG11-COOH) is a biotin-PEG compound containing a carboxyl group (-COOH) that can be used to react with an amine group (NH2) to form a stable amide bond. Biotin-PEG11-acid can be used for protein labeling and drug delivery research .

HY-140895C

Biotin-PEG20000-Amine Biotin-PEG20000-NH2	Biochemical Assay Reagents
Biotin-PEG20000-Amine (Biotin-PEG20000-NH2) is a biotin PEG polymer containing a free amine group (-NH2). The amine group is reactive with an activated NHS ester via formation of an amide bond. Biotin-labeled compounds can then be linked to avidin or streptavidin for further purification or detection .

HY-174904

Dde Biotin-PEG4-COOH	Biochemical Assay Reagents
Dde Biotin-PEG4-COOH is a PEG derivative composed of Biotin, 5 PEG units, and a carboxyl group (-COOH). Biotin can form a stable non-covalent bond with streptavidin. The carboxyl group can easily form a stable amide bond with the amino group, and can also form an ester bond with the hydroxyl group.

HY-W1048918B

mPEG10000-CM mPEG10000-COOH	Biochemical Assay Reagents
mPEG10000-CM (mPEG10000-COOH) has a reactive carboxyl group (-COOH) attached to the terminal site of the structure, which can form a stable amide bond with the amino group or an ester bond with the hydroxyl group. mPEG10000-CM can be used for drug delivery .

HY-W1048918D

mPEG40000-CM mPEG40000-COOH	Biochemical Assay Reagents
mPEG40000-CM (mPEG40000-COOH) has a reactive carboxyl group (-COOH) attached to the terminal site of the structure, which can form a stable amide bond with the amino group or an ester bond with the hydroxyl group. mPEG40000-CM can be used for drug delivery .

HY-W1048918C

mPEG20000-CM mPEG20000-COOH	Biochemical Assay Reagents
mPEG20000-CM (mPEG20000-COOH) has a reactive carboxyl group (-COOH) attached to the terminal site of the structure, which can form a stable amide bond with the amino group or an ester bond with the hydroxyl group. mPEG20000-CM can be used for drug delivery .

HY-W1048918E

mPEG3400-CM mPEG3400-COOH	Biochemical Assay Reagents
mPEG3400-CM (mPEG3400-COOH) has a reactive carboxyl group (-COOH) attached to the terminal site of the structure, which can form a stable amide bond with the amino group or an ester bond with the hydroxyl group. mPEG3400-CM can be used for drug delivery .

HY-W1123939B

Silane-PEG3400-COOH	Biochemical Assay Reagents
Silane-PEG3400-COOH can be used to modify proteins, peptides and other materials with active groups. The carboxyl group (-COOH) can easily form a stable amide bond with the amino group, and can also form an ester bond with the hydroxyl group. Silane-functionalized PEG (Silane-PEG-X) can be used to modify glass, silicon, etc .

HY-W1048549D

HOOC-PEG10000-SH HOOC-PEG10000-Thiol	Biochemical Assay Reagents
HOOC-PEG10000-SH (HOOC-PEG10000-Thiol) is a reactive thiol PEG derivative with a terminal carboxyl group. The carboxyl group can react with amine or hydroxyl groups to form a stable amide bond or an unstable ester bond. The PEG linkage between the thiol and carboxyl groups has good water solubility, flexible linker distance and higher stability .

HY-W1048549B

HOOC-PEG3400-SH HOOC-PEG3400-Thiol	Biochemical Assay Reagents
HOOC-PEG3400-SH (HOOC-PEG3400-Thiol) is a reactive thiol PEG derivative with a terminal carboxyl group. The carboxyl group can react with amine or hydroxyl groups to form a stable amide bond or an unstable ester bond. The PEG linkage between the thiol and carboxyl groups has good water solubility, flexible linker distance and higher stability .

HY-174364B

Alkyne-PEG3400-COOH	Biochemical Assay Reagents
Alkyne-PEG3400-COOH is a heterobifunctional PEG crosslinker that can be used to attach functional PEG to biomolecules, particles, and other material surfaces. The carboxyl group can react with the amine group to form a stable amide bond .

HY-174364

Alkyne-PEG1000-COOH	Biochemical Assay Reagents
Alkyne-PEG1000-COOH is a heterobifunctional PEG crosslinker that can be used to attach functional PEG to biomolecules, particles, and other material surfaces. The carboxyl group can react with the amine group to form a stable amide bond .

HY-174364H

Alkyne-PEG40000-COOH	Biochemical Assay Reagents
Alkyne-PEG40000-COOH is a heterobifunctional PEG crosslinker that can be used to attach functional PEG to biomolecules, particles, and other material surfaces. The carboxyl group can react with the amine group to form a stable amide bond .

HY-174364D

Alkyne-PEG10000-COOH	Biochemical Assay Reagents
Alkyne-PEG10000-COOH is a heterobifunctional PEG crosslinker that can be used to attach functional PEG to biomolecules, particles, and other material surfaces. The carboxyl group can react with the amine group to form a stable amide bond .

HY-174364A

Alkyne-PEG2000-COOH	Biochemical Assay Reagents
Alkyne-PEG2000-COOH is a heterobifunctional PEG crosslinker that can be used to attach functional PEG to biomolecules, particles, and other material surfaces. The carboxyl group can react with the amine group to form a stable amide bond .

HY-W888710C

FA-PEG1000-COOH Folate-PEG1000-COOH	Biochemical Assay Reagents
FA-PEG1000-COOH (Folate-PEG1000-COOH) is a Folic acid (HY-16637)-modified PEG derivative containing a carboxyl group (-COOH). The carboxyl group can easily form a stable amide bond with an amino group, or an ester bond with a hydroxyl group. Folic acid (-FA) has a high affinity for the folate receptor and can be used to target cell membrane receptors for drug delivery .

HY-W888710H

FA-PEG5000-COOH Folate-PEG5000-COOH	Biochemical Assay Reagents
FA-PEG5000-COOH (Folate-PEG5000-COOH) is a Folic acid (HY-16637)-modified PEG derivative containing a carboxyl group (-COOH). The carboxyl group can easily form a stable amide bond with an amino group, or an ester bond with a hydroxyl group. Folic acid (-FA) has a high affinity for the folate receptor and can be used to target cell membrane receptors for drug delivery .

HY-W888710I

FA-PEG10000-COOH Folate-PEG10000-COOH	Biochemical Assay Reagents
FA-PEG10000-COOH (Folate-PEG10000-COOH) is a Folic acid (HY-16637)-modified PEG derivative containing a carboxyl group (-COOH). The carboxyl group can easily form a stable amide bond with an amino group, or an ester bond with a hydroxyl group. Folic acid (-FA) has a high affinity for the folate receptor and can be used to target cell membrane receptors for drug delivery .

HY-W888710A

FA-PEG400-COOH Folate-PEG400-COOH	Biochemical Assay Reagents
FA-PEG400-COOH (Folate-PEG400-COOH) is a Folic acid (HY-16637)-modified PEG derivative containing a carboxyl group (-COOH). The carboxyl group can easily form a stable amide bond with an amino group, or an ester bond with a hydroxyl group. Folic acid (-FA) has a high affinity for the folate receptor and can be used to target cell membrane receptors for drug delivery .

Cat. No.	Product Name	Target	Research Area

HY-W010712

Fmoc-His(Trt)-OH 1 Publications Verification	Amino Acid Derivatives	Others
Fmoc-His(Trt)-OH is a histidine derivative with a trityl (Trt) group protecting the His side chain. Fmoc-His(Trt)-OH also has an Fmoc group protecting the α-NH₂ group. Fmoc-His(Trt)-OH can be used in solid-phase peptide synthesis to prevent racemization and byproduct formation. Fmoc-His(Trt)-OH acts as a protected histidine precursor in solid-phase peptide synthesis (SPPS), participating in peptide chain construction through amide bond formation. Fmoc-His(Trt)-OH can be precisely incorporated into the target peptide sequence, ensuring correct peptide chain synthesis and reducing impurity formation. Fmoc-His(Trt)-OH is mainly used in the solid-phase synthesis research of pharmaceutical peptides and bioactive peptides, and is particularly suitable for the preparation of peptide drugs requiring precise control of histidine configuration .

HY-P1883A

Bacterial Sortase Substrate III, Abz/DNP TFA	Fluorescent Dye	Infection
Bacterial Sortase Substrate III, Abz/DNP TFA is a fluorescent peptide substrate. Bacterial Sortase Substrate III, Abz/DNP TFA undergoes cleavage catalyzed by Staphylococcus aureus sortase A (SrtAΔN24) and Streptococcus pyogenes sortase A (SrtAΔN81), and catalyzes the formation of an amide bond between the carboxyl group of threonine and the amino group of the cell wall cross-bridge. Cleavage of this substrate can be detected at Ex/Em=320 nm/420 nm .

HY-P5481

DABCYL-LPETG-EDANS	Peptides	Others
DABCYL-LPETG-EDANS is a biological active peptide. (This 5-amino acid peptide is a sortase substrate, C-terminal sorting signal. Sortase cleaves surface proteins at the LPXTG motif and catalyzes the formation of an amide bond between the carboxyl group of threonine and the amino group of cell-wall crossbridges. Sortases are a family of Gram-positive transpeptidases responsible for anchoring surface protein virulence factors to the peptidoglycan cell wall layer. Cleavage of this FRET substrate by sortase reveals the fluorescent signal, Abs/Em = 340/490 nm.)

HY-P2498A

Cathepsin D and E FRET Substrate acetate	Cathepsin	Cancer
Cathepsin D and E FRET Substrate acetate is a fluorogenic substrate for cathepsins D and E and not for B, H or L. The cleavage occurs at the Phe-Phe amide bond resul. Cathepsin D and E FRET Substrate is a valuable tool for routine assays and for mechanistic studies on cathepsins E and D .

HY-P4920

Mca-SEVNLDAEFK(Dnp)-NH2	Fluorescent Dye	Others
Mca-SEVNLDAEFK(Dnp)-NH2 contains a highly fluorescent 7-methoxycoumarin group that is efficiently quenched by resonance energy transfer to the 2,4-dinitrophenyl group. It can be used to measure the activities of peptidases that are capable of cleaving an amide bond between the fluorescent group and the quencher group, causing an increase in fluorescence, such as can be used to measure the activity of BACE-1 .

HY-P4332

Boc-Glu(OBzl)-Ala-Arg-AMC	Fluorescent Dye Ser/Thr Protease	Cardiovascular Disease
Boc-Glu(OBzl)-Ala-Arg-AMC is a fluorogenic substrate for coagulation factor XIa and trypsin. The cleavage of the amide bond between arginine and the methylcoumarin amide group releases fluorescent 7-Amino-4-methylcoumarin (HY-D0027) .

HY-P2498

Cathepsin D and E FRET Substrate	Cathepsin	Others
Cathepsin D and E FRET Substrate is a fluorogenic substrate for cathepsins D and E and not for B, H or L. The cleavage occurs at the Phe-Phe amide bond resul. Cathepsin D and E FRET Substrate is a valuable tool for routine assays and for mechanistic studies on cathepsins E and D .

HY-P1883

Bacterial Sortase Substrate III, Abz/DNP	Fluorescent Dye	Infection
Bacterial Sortase Substrate III, Abz/DNP is a fluorescent peptide substrate. Bacterial Sortase Substrate III, Abz/DNP undergoes cleavage catalyzed by Staphylococcus aureus sortase A (SrtAΔN24) and Streptococcus pyogenes sortase A (SrtAΔN81), and catalyzes the formation of an amide bond between the carboxyl group of threonine and the amino group of the cell wall cross-bridge. Cleavage of this substrate can be detected at Ex/Em=320 nm/420 nm .

HY-P11325

Ac-RR-AFC TFA	Cathepsin Fluorescent Dye	Others
Ac-RR-AFC TFA is a Cathepsin B fluorogenic substrate (Ex=400 nm, Em=505 nm). Cathepsin B activity in cells lysates is determined by measuring cleavage of Ac-RR-AFC TFA and its cleavage occurs at the RR-AFC amide bond. Ac-RR-AFC TFA can be used for activity assays and mechanistic studies on cathepsin B .

HY-P4333

Boc-Glu(OBzl)-Gly-Arg-AMC	Fluorescent Dye	Cardiovascular Disease
Boc-Glu(OBzl)-Gly-Arg-AMC is a fluorogenic substrate for factors IXa and XIIa. The cleavage of the amide bond between arginine and the methylcoumarin amide group releases fluorescent 7-Amino-4-methylcoumarin (HY-D0027) .

HY-P1169A

Ac-IETD-AFC TFA	Caspase	Others
Ac-IETD-AFC TFA is a synthetic fluorogenic substrate that can be used to specifically detect caspase-8 activity. INDO 1 pentasodium is imbued with the fluorophore AFC (7-amino-4-trifluoromethylcoumarin). When caspase-8 recognizes and cleaves the amide bond following the IETD sequence in this substrate, AFC is released and emits fluorescence (Ex = ~400 nm; Em = ~505 nm) .

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-101884

Biocytin 4 Publications Verification (+)-Biocytin	Human Gut Microbiota Metabolites Neurological Disease Classification of Application Fields Ketones, Aldehydes, Acids Endogenous metabolite Disease Research Fields Source Classification	Endogenous Metabolite
Biocytin is a conjugate of _D-biotin and _L-lysine, where the carboxylate of _D-biotin is coupled with the -amine of _L-lysine via a secondary amide bond. Biocytin is a classical neuroanatomical tracer commonly used to map brain connectivity. Biocytin is used as a versatile marker in anterograde, retrograde and intracellular neuroanatomical investigations and in biotinidase assays .

HY-W012161

Alanylphenylalanine L-Alanyl-L-phenylalanine; H-Ala-Phe-OH	Structural Classification Classification of Application Fields Ketones, Aldehydes, Acids Metabolic Disease Endogenous metabolite Disease Research Fields Source Classification	Endogenous Metabolite Drug Intermediate
Alanylphenylalanine (L-Alanyl-L-phenylalanine) is a dipeptide. Alanylphenylalanine forms a mononuclear Au (III) complex through bidentate coordination via its carboxyl oxygen atom and deprotonated amide nitrogen atom .

HY-N6723

Fumonisin B2	Infection Structural Classification Human Gut Microbiota Metabolites Microorganisms Classification of Application Fields Antibiotics Antibacterial Disease Research Endogenous metabolite Disease Research Fields Other Antibiotics Source Classification	Ceramidase Acyltransferase
Fumonisin B2 is a selective ceramide synthase inhibitor and carcinogenic mycotoxin with toxicity comparable to that of Fumonisin B1 (HY-N6719). Fumonisin B2 inhibits de novo sphingolipid biosynthesis by blocking the amide bond formation between fatty acids and dihydrosphingosine, which leads to a massive intracellular accumulation of free dihydrosphingosine, altered sphingosine levels, subsequent inhibition of cell proliferation, and induction of cell death. Fumonisin B2 is used to investigate the pathogenesis of diseases associated with Fusarium verticillioides contamination, including equine leukoencephalomalacia, porcine pulmonary edema syndrome, human esophageal cancer, and rat hepatocellular carcinoma .

HY-101884R

Biocytin (Standard) (+)-Biocytin (Standard)	Structural Classification Human Gut Microbiota Metabolites Microorganisms Ketones, Aldehydes, Acids Endogenous metabolite Source Classification	Reference Standards Endogenous Metabolite
Biocytin (Standard) is the analytical standard of Biocytin. This product is intended for research and analytical applications. Biocytin is a conjugate of D-biotin and L-lysine, where the carboxylate of D-biotin is coupled with the -amine of L-lysine via a secondary amide bond. Biocytin is a classical neuroanatomical tracer commonly used to map brain connectivity. Biocytin is used as a versatile marker in anterograde, retrograde and intracellular neuroanatomical investigations and in biotinidase assays[1][2].

Cat. No.	Product Name	Chemical Structure

HY-126584S

H-Val-Val-OH-13C10,15N2 TFA
H-Val-Val-OH- ¹³C₁₀, ¹⁵N₂ TFA (Val-val- ¹³C₁₀, ¹⁵N₂) is the ¹³C- and ¹⁵N-labeled H-Val-Val-OH (HY-126584). H-VAL-VAL-OH (Val-val) is a dipeptide in which two valine (Val) residues are linked by an amide bond. H-VAL-VAL-OH can be used for the synthesis of some important compounds such as Poststatin (HY-125432) .

Cat. No.	Product Name		Classification

HY-151821

Sulfo DBCO-PEG3-acid		DBCO
Sulfo DBCO-PEG3-acid is a click chemistry reagent containing an azide group. Sulfo DBCO-PEG3-acid is an analog of DBCO-Acid with PEG linker and a DBCO group. The DBCO groups is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain and sulfo group increase water solubility. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research use only .

HY-151820

DBCO-PEG24-acid		DBCO
DBCO-PEG24-acid is a click chemistry reagent. DBCO-PEG24-acid is an analog of DBCO-Acid with PEG linker and a DBCO group. The DBCO groups is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain allows for increased water solubility. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research use only .

HY-148840

Sulfo DBCO-PEG3-NHS ester		DBCO
Sulfo DBCO-PEG3-NHS ester is a click chemistry reagent containing an azide group. Sulfo DBCO-PEG3-NHS ester is an analog of DBCO-Acid with PEG linker and a DBCO group. The DBCO group is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain and sulfo group increase water solubility. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research use only .

HY-151738

Fmoc-Aeg(N3)-OH		Azide
Fmoc-Aeg(N3)-OH is a click chemistry reagent containing an Azide. Alkylating the Nitrogen of an amide bond results in peptoid structures, which leads to conformational restrains, like N-methylation and allows backbone derivatisation. Altering cytotoxicity, bacterial cell selectivity and receptor pharmacology through formation of peptoid derivatives have been published for Cilengitide, Piscidin 1, and MC3, MC4 and MC5 receptor agonist. This building block enables design of macrocycles through intermolecular crosslinking or backbone stabilization through intermolecular ring-closure. This compound is a potential building block for the construction of (customized) peptide nucleic acids (PNAs) and for peptoid synthesis . Fmoc-Aeg(N3)-OH is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.

HY-W800676

DBCO-N-bis(PEG4-acid)		DBCO
DBCO-N-bis(PEG4-acid) is a branched click chemistry reagent. The DBCO group enables copper-free Click Chemistry reactions. carboxylic acid groups allows for reactions with primary amine groups using activators such as EDC or HATU to form a stable amide bond.

HY-148840A

Sulfo DBCO-PEG3-NHS ester TEA		DBCO
Sulfo DBCO-PEG3-NHS ester TEA is a click chemistry reagent containing an azide group. Sulfo DBCO-PEG3-NHS ester (TEA) is an analog of DBCO-Acid with PEG linker and a DBCO group. The DBCO group is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain and sulfo group increase water solubility. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research use only .

HY-151833

Methyltetrazine-amido-N-bis(PEG4-acid)		Tetrazine
Methyltetrazine-amido-N-bis(PEG4-acid) is a click chemistry reagent containing an azide group. Methyltetrazine-amido-N-bis(PEG4-acid) is a PEG derivative that contains a methyltetrazine group and two acid groups. This reagent can react with TCO-containing compounds to form a stable covalent bond without the catalysis of Cu or elevated temperatures. The inverse-electron demand Diels-Alder cycloaddition reaction of TCO with tetrazines is the fastest bioorthogonal reaction with exceptional selectivity. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. PEG linker increases the water solubility of the compound. Reagent grade, for research use only . Methyltetrazine-amido-N-bis(PEG4-acid) is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.

HY-W800653

N-(Azido-PEG3)-NH-PEG3-t-butyl ester		Azide
N-(Azido-PEG3)-NH-PEG3-t-butyl ester is a click chemistry reagent with a terminal azide group and secondary amine NH group. NH group is reactive with NHS ester, The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The azide group can participate in Click Chemistry.

Cat. No.	Product Name		Classification

HY-112624B

Dextran T70 (MW 70,000) Dextran 70; Dextran D70; Dextran T70(MW 64000-76000)		Polymers
Dextran 70,000 is a high molecular weight polysaccharide formed by glucose linked by α-(1→6) glycosidic bonds. Dextran 70,000 can expand blood volume through colloidal osmotic pressure effect and inhibit cell adhesion and platelet aggregation through steric hindrance. At the same time, Dextran 70,000 can be used as a drug carrier to achieve targeted delivery through endocytosis. Dextran 70,000 is biologically inert and has low immunogenicity. It can be used for clinical blood volume expansion, anti-thrombotic research, and evaluation of vascular permeability in in vitro experiments. It can also be combined with fluorescent dyes for cell tracking and drug delivery research. The Dextran series of compounds are also natural polysaccharide drug carriers that can be connected to drugs through covalent bonding methods such as ester bonds, amide bonds or click chemistry, or self-assembled to form carriers such as nanoparticles and hydrogels. Dextran is biodegradable and biocompatible, and can achieve targeted delivery and controlled release of drugs. Dextran derivatives can prolong the half-life of drugs, increase local concentrations, and reduce the activity of immune clearance.

HY-W591461

DSPE-PEG-COOH, MW 2000 1 Publications Verification		Pegylated Lipids
DSPE-PEG-COOH, MW 2000 is a phospholipid polyPEG which can be used to prepare liposomes or nanoparticles. The terminal carboxylic acid can react with primary amine groups to form a stable amide bond.

HY-169794

N-Palmitoyl-phenylalanine		Cationic Lipids
N-Palmitoyl-phenylalanine is an N-acyl amide that contains the long-chain saturated fatty acid Palmitic acid (HY-N0830) conjugated via an amide bond to the essential amino acid L-Phenylalanine (HY-N0215). N-Palmitoyl-phenylalanine inhibits pre-mRNA splicing in HeLa cell nuclear lysates (IC₅₀ ＞ 400 μM) but has no splicing activity in intact HeLa cells .

HY-W440706

Cholesterol-PEG2000-alcohol		Pegylated Lipids
Cholesterol-PEG2000-alcohol is a pegylated lipids which can be used for preparation of liposome or nanoparticle. The lipophilic moiety can encapsulate hydrophobic drugs whereas the hydrophilic PEG chain helps the overal water solubility of the micelles. The amine can react with an activated NHS ester to form a stable amide bond.

HY-W440927

Stearic acid-PEG2000-NHS		Pegylated Lipids
Stearic acid-PEG2000-NHS is an amphiphatic PEG polymer which forms micelles in an aqueous solution for drug-loaded nanoparticles. The NHS ester is reactive with amine to form a stable amide bond. Reagent grade, for research purpose.

HY-177921

PL53		Phospholipids
PL53 is a kind of cycloalkylamine lipid nanoparticles. PL53 exhibits outstanding transfection efficiency both in vitro and in vivo, especially showing strong protein expression ability and potential tissue targeting after intramuscular injection. PL53 can be used for the study of nucleic acid delivery .

HY-W800825

Octadecanedioic acid mono-L-carnitine ester		Cationic Lipids
Octadecanedioic Acid Mono-L-carnitine ester is a cationic lipid which may be used in combination with other lipids in the formation of lipid nanoparticles (LNPs). Its terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. HATU) to form a stable amide bond.

HY-W440954

Stearic acid-PEG2000-CH2CO2H		Pegylated Lipids
Stearic acid-PEG2000-CH2CO2H is a heterobifunctional polyPEG with 18-carbon aliphatic chain and carboxyl. The polymer has stearic acid as the hydrophobic tail and PEG as the hydrophilic chain, therefore it forms micelles in water. Carboxyl can react with amine in the presence of activator, such as HATU/EDC to generate a stable amide bond. Reagent grade, for research use only.

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