52 Results for "

probe design

" in MedChemExpress (MCE) Product Catalog:
Products (52)

52 Results for "probe design" in MCE Product Catalog:

Cat. No.: HY-D3003
CAS No.: 2522921-17-9
M-H2S is an endoplasmic reticulum-targeted ratio-type near-infrared fluorescent probe (Ex/Em : 480 nm/560 nm) specifically designed for the detection of hydrogen sulfide (H2S) in living cells and zebrafish. M-H2S exhibits detection limit for H2S of 39.1 nM, and the fluorescence intensity ratio (F₆₅₀/F₅₆₀) within the range of 0-40 μM shows a linear relationship with the H2S concentration. M-H2S responds best under pH = 7.2 (the normal physiological pH of the endoplasmic reticulum) conditions, making it suitable for the detection of the microenvironment of the endoplasmic reticulum. M-H2S can be used to study the role of H2S in endoplasmic reticulum function, stress response, and related diseases .
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Cat. No.: HY-D3141
DR probe is a "dual-key-and-lock" fluorescent probe designed based on the Resorufin (HY-123533) scaffold (Ex/Em = 647 nm/663-738 nm). DR probe can be sequentially activated by hydrogen peroxide to form the intermediate SR, which acts as a tyrosinase substrate to trigger a fluorescence turn-on signal. DR probe can distinguish normal melanocytes from melanoma cells. DR probe supports cell imaging and can be applied to mouse melanoma models to achieve melanoma diagnosis with higher accuracy and lower false-positive rates. DR probe is applicable to relevant research on melanoma .
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Cat. No.: HY-P11684
CAS No.: 172405-61-7
Target:  

DNA/RNA Synthesis

Research Areas:  

Others

Fmoc-PNA-C(Boc)-OH is a protected peptide nucleic acid (PNA) monomer for solid-phase synthesis. Fmoc-PNA-C(Boc)-OH possesses Fmoc-protected skeletal amino groups and Boc-protected cytosine bases, designed to construct stable synthetic DNA analogs. Fmoc-PNA-C(Boc)-OH can be used to prepare highly specific, enzyme-stable antisense probes and diagnostic probes.
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Cat. No.: HY-156583
CAS No.: 21300-59-4
Synonyms: TPAC
Research Areas:  

Others

Thiophosphoro alkyne dichloridate (TPAC) is a thio-phosphonyl dichloride reagent based on the biomimetic design of histidine phosphorylation. Thiophosphoro alkyne dichloridate can selectively covalently couple with histidine and can be used for the development of protein function probes .
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Cat. No.: HY-181455
CAS No.: 2309930-88-7
Target:  

Drug Derivative

Research Areas:  

Others

rel-FTY720 phenoxy-biotin hydrochloride is a chemical probe designed based on the structure of Fingolimod (HY-12005), which incorporates a phenoxy group capable of specific click chemistry reactions and is conjugated with a biotin tag .
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Cat. No.: HY-D2951
CAS No.: 2270958-94-4
BG-Kaede chromophore (Compound 4c) is a SNAP-tag-specific fluorescent probe, which is designed and synthesized using the chromophore of the red fluorescent protein Kaede as a template. BG-Kaede chromophore can be used as a tool for visualizing proteins in living cells .
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Cat. No.: HY-D3346
Dusquench1 NHS ester is an amino-reactive fluorescent quencher (it does not emit light and has no emission wavelength, Ex = 480-580 nM), specially designed for labeling proteins, oligonucleotides and other biopolymers containing primary amines. It is a core reagent in the fields of qPCR probes, FRET detection and molecular beacons.
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Cat. No.: HY-113331F
Research Areas:  

Others

Thromboxane B2-biotin is an affinity probe that allows detection of thromboxane B2 through an interaction with the biotin ligand. Thromboxane B2-biotin is designed to allow thromboxane B2 to be detected in complexes with protein binding partners .
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Cat. No.: HY-P11911
Cyclo(Val-Val-Ile-d-Ala-Trp(7-Br)-Gly) is a cyclic peptide containing 7-bromotryptophan, designed as a precursor for Sonogashira cross-coupling to generate a BODIPY-conjugated probe selective for prefibrillar Aβ1−42 oligomers .
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Cat. No.: HY-W540123
CAS No.: 186046-82-2
Research Areas:  

Cancer

Fmoc-PNA-A(Bhoc)-OH is a protected peptide nucleic acid (PNA) monomer carrying an adenine base. Fmoc-PNA-A(Bhoc)-OH contains Fmoc and benzhydryloxycarbonyl (Bhoc) protecting groups, and serves as a standard building block designed specifically for solid-phase PNA synthesis. Fmoc-PNA-A(Bhoc)-OH can be efficiently used to synthesize PNA-based sequence-specific hybridization probes. These probes have broad applications in molecular biology research; for example, they can be used in HER2-expressing tumor-related studies, providing tools for disease diagnosis and mechanism exploration .
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Cat. No.: HY-D2941
Synonyms: SNAP-AF
BGAF (SNAP-AF) is a fluorescent diacetyl fluorescein-labeled SNAP tag fluorescent probe, specifically designed for the covalent labeling of SNAP-tag fusion proteins in living cells. BGAF utilizes the specific reaction of the human DNA repair protein hAGT to achieve specific fluorescent labeling of the target protein in the living cell environment .
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Cat. No.: HY-D3407
Dusquench2 dT phosphoramidite is a non-fluorescent dark quencher that absorbs emission from nearby fluorophores without generating its own fluorescent signal. Featuring a dT phosphoramidite moiety, it is designed for incorporation during oligonucleotide synthesis. Dusquench2 dT phosphoramidite is primarily used in FRET-based nucleic acid probes, molecular beacons, and multiplex qPCR assays.
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Cat. No.: HY-D3143
CAS No.: 2411524-33-7
QM-B-CF is a sequential dual-lock chemiluminescent/fluorescent dual-mode probe designed for the specific detection of H2O2, and it can produce enhanced chemiluminescence upon photoirradiation. QM-B-CF generates chemiluminescent signals only under the conditions of H2O2 and light exposure in vitro, in cancer cells, and in tumor-bearing nude mice (Ex/Em = 514 nm/600 nm) .
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Cat. No.: HY-D2939
CAS No.: 1622078-12-9
BGSBD is a SNAP-tag-based fluorescent probe (Ex/Em: 435 nm/516 nm) based on the environmentally sensitive fluorescent group SBD, specifically designed for protein labeling of live cells without washing. BGSBD achieves a 280-fold fluorescence enhancement after labeling by ingeniously utilizing the hydrophobic binding pocket of the SNAP-tag protein, providing an ideal tool for real-time monitoring of protein dynamics within cells .
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Cat. No.: HY-158616
CAS No.: 1286479-53-5
4-Methyl-7-(2-nitrophenoxy)-2H-chromen-2-one (compound 2f) is a selenol fluorescent probe designed based on a nucleophilic aromatic substitution mechanism. It can selectively recognize selenols in neutral aqueous solution without significant interference from biological thiols, amines or alcohols. It can be used to quantify the selenium content in selenoenzymes and to image the activity of endogenous selenols in living cells.
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Cat. No.: HY-D2982
CAS No.: 1978301-38-0
BTP9-Neu5Ac is a fluorescent imaging probe specifically designed for detecting the neuraminidase (NA) sialidase activity of influenza viruses. BTP9-Neu5Ac can visualize the intracellular Golgi localization of the viral NA activity. BTP9-Neu5Ac can be used for precise and temporal monitoring of the key enzyme activities during the viral life cycle .
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Cat. No.: HY-D3224
CAS No.: 2413777-91-8
HCP is a two-photon fluorescent probe capable of crossing the blood-brain barrier, which is specifically designed for real-time detection of hypochlorous acid (HClO/ClO -) produced by myeloperoxidase (MPO). Chlorination of the quinoline skeleton of HCP generates HCP-Cl, which eliminates intramolecular charge transfer (ICT) quenching and thereby produces fluorescence. HCP is suitable for in vivo dynamic imaging of HClO in the brains of epileptic mice and high-throughput screening of antiepileptic drugs (HCP-Cl: Ex/Em = 800 nm/495 nm) .
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Cat. No.: HY-L945
74 compounds

Sulfonyl fluoride (-SO₂F) overcomes the poor target selectivity of traditional covalent warheads that rely heavily on cysteine. With high stability and tunable electrophilicity under physiological conditions, it targets multiple nucleophilic residues including Lys, Tyr, Ser and His, offering expanded druggable space, lower off-target risks and prolonged efficacy. It is widely used in covalent inhibitors, molecular glues, PROTACs and chemical probes.

MCE has built a highly diverse sulfonyl fluoride fragment library with 1,162 structurally diverse, drug-like fragments. Designed for balanced reactivity, stability and compatibility, these molecules feature tunable electrophilicity, simple scaffolds and high derivatization potential. Combined with SuFEx click chemistry, the library enables efficient modular modification and rapid structure optimization.

Ideal for targeting non-cysteine residues, this library improves covalent screening and probe development efficiency, serving as a precise tool for early-stage covalent drug discovery and chemical biology research.

Cat. No.: HY-P11688
Research Areas:  

Others

Fmoc-PNA-M (Bhoc)-OH is a standard peptide nucleic acid (PNA) monomer building block. Fmoc-PNA-M (Bhoc)-OH carries two protecting groups, Fmoc and Bhoc, and is specifically designed for solid-phase and automated PNA synthesis. Fmoc-PNA-M (Bhoc)-OH efficiently participates in the construction of sequence-specific PNA probes. Through its protecting group strategy, Fmoc-PNA-M (Bhoc)-OH ensures the accuracy and efficiency of PNA synthesis, and is one of the important raw materials for PNA synthesis at present .
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Cat. No.: HY-D3007
LD-CK is a fluorescent probe based on a coumarin-chromone structure, specifically designed to visualize lipid droplet polarity changes and endowed with multimodal imaging capability. LD-CK contains a high-performance lipophilic coumarin moiety, which enables it to specifically target lipid droplets upon cellular entry while minimizing background fluorescence to the greatest extent. LD-CK has an excitation wavelength (Ex) of 488 nm and an emission wavelength (Em) of 540 nm (in low-polarity environments such as toluene) or 640 nm (in high-polarity environments such as glycerol), with its emission peak undergoing a redshift as solvent polarity increases .
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