12 Results for "

copper-free click cycloaddition

" in MedChemExpress (MCE) Product Catalog:
Products (12)

12 Results for "copper-free click cycloaddition" in MCE Product Catalog:

6
6 Cited Publications
Cat. No.: HY-130809
CAS No.: 1255942-07-4
Purity:  99.40%
Research Areas:  

Cancer

DBCO-PEG4-Biotin is an azadibenzocyclooctyne-biotin derivative containing a biotin group and 4 PEGs. DBCO-PEG4-Biotin is a versatile biotinylation reagent used for the introduction of a biotin moiety to azide-labeled biomolecules via copper-free strain-promoted alkyne-azide click chemistry (SPAAC) reaction . DBCO-PEG4-Biotin is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.
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Cat. No.: HY-115524
CAS No.: 1384870-47-6
Purity:  ≥97.0%
Target:  

ADC Linkers

Research Areas:  

Cancer

DBCO-NHS ester 2 is a cleavable linker that is used for making antibody-drug conjugate (ADC). DBCO-NHS ester 2 is a derivative of Dibenzylcyclooctyne (DBCO) used in copper-free click chemistry[1]. DBCO-NHS ester 2 is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.
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Cat. No.: HY-130086
CAS No.: 1314378-11-4
Purity:  99.29%
Target:  

ADC Linkers

Research Areas:  

Cancer

Bis-PEG4-NHS ester is a crosslinking reagent and amine-reactive modulator .Bis-PEG4-NHS ester reacts with primary amine groups on liposome surfaces via amide bond formation to covalently attach dibenzylcyclooctyne groups, with a hydrophilic PEG4 spacer reducing steric hindrance for subsequent click chemistry .Bis-PEG4-NHS ester enables site-specific antibody coupling to liposome surfaces via copper-free strain-promoted alkyne-azide cycloaddition click chemistry without disrupting liposome structure in minimal organic solvent volumes .Bis-PEG4-NHS ester undergoes hydrolysis during annealing to form -COOH groups that interact with PbI and FAI to enhance perovskite structural integrity, passivate defects, and modulate nucleation kinetics to regulate crystal growth .Bis-PEG4-NHS ester enhances device efficiency and long-term stability when used as an antisolvent additive for p-i-n perovskite solar cells .
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Cat. No.: HY-D1320
CAS No.: 1267539-32-1
Target:  

Fluorescent Dye

Research Areas:  

Others

Cyanine5 azide chloride is a Fluorescent probe for cell-selective bacterial protein labeling, as well as a fluorescent dye for single-molecule imaging and dynamic tracking of intracellular organelles. Cyanine5 azide chloride can conjugate with the alkynyl side chain of propargylglycine incorporated into bacterial proteins by the engineered methionyl-tRNA synthetase variant PraRS via copper (I)-catalyzed azide-alkyne [3+2] cycloaddition reaction, thereby enabling in-gel fluorescent visualization of labeled proteins. Cyanine5 azide chloride can diffuse across cell membranes and undergo copper-free click reaction with DBCO-functionalized scAVD pre-bound to DBCO-functionalized biotin, forming fluorescent nanoprobes with enhanced brightness, photostability and localization accuracy, and exhibiting discrete photobleaching steps. The excitation wavelength of Cyanine5 azide chloride is Ex = 633 nm .
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Cat. No.: HY-W588722
CAS No.: 3024705-52-7
ICG-DBCO is a near-infrared fluorescent click chemistry reagent (Ex/Em = 789/813 nm), composed of Indocyanine green (ICG) (HY-D0711) and dibenzocyclooctyne (DBCO). ICG-DBCO enables copper-free, strain-promoted azide-alkyne cycloaddition (SPAAC) for labeling biomolecules such as antibodies, proteins and peptides, thereby facilitating deep tissue optical imaging .
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Cat. No.: HY-D1625
CAS No.: 2182601-72-3
Cy5 DBCO chloride is an azide reaction probe and the addition of DBCO molecules allows the imaging of azide-labelled biomolecules by a copper-free "Click Chemistry" reaction . Cy5 DBCO (chloride) is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.
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Cat. No.: HY-151824
CAS No.: 2576508-03-5
Target:  

ADC Linkers

Research Areas:  

Others

Boc-L-Phe(4-NH-Poc)-OH is a click chemistry reagent containing an azide group. Used as an orthogonally protected building block in peptide synthesis. Propargyloxycarbonyl, commonly abbreviated as Poc or Pryoc, can either be used as alkyne component for standard Click conjugation or in combination with tetrazine linkers in copper-free Diels-Alder type Click reactions. It also has applications as unusual protecting group for amines, hydroxy functions and as esters. All 3 are stable to neat TFA, but can be cleaved at ambient temperature with Co2(CO)8 in TFA:DCM. Deprotection with other transition metals like palladium have also been reported . Boc-L-Phe(4-NH-Poc)-OH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
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Cat. No.: HY-W714234
CAS No.: 1352811-59-6
Research Areas:  

Others

Endo-BCN CE-phosphoramidite is a stable and one of the most reactive cyclooctynes for copper-free click chemistry. Unlike dibenzocyclooctyne (DBCO), BCN is reactive both to azides (strain-promoted azyde-alkyne cycloaddition, SPAAC) and tetrazines (inverse electron demand Diels-Alder reaction, IEDDA).
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Cat. No.: HY-151780
CAS No.: 2250436-47-4
Target:  

ADC Linkers

Research Areas:  

Others

Fmoc-L-Dap(Pentynoyl)-OH is a click chemistry reagent containing an azide group. Fmoc-L-Dap(Pentynoyl)-OH serves as an amino acid building block for introducing alkyne functions into peptide sequences by standard Fmoc/tBu protocols. The alkyne residue can be engaged for copper catalyzed click reaction with organic azides or with tetrazines for copper-free conjugations . Fmoc-L-Dap(Pentynoyl)-OH is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
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Cat. No.: HY-181228
Research Areas:  

Others

DBCO-PEG10-Biotin is an azadibenzocyclooctyne-biotin derivative containing a biotin group and 10 PEGs. DBCO-PEG10-Biotin is a versatile biotinylation reagent used for the introduction of a biotin moiety to azide-labeled biomolecules via copper-free strain-promoted alkyne-azide click chemistry (SPAAC) reaction. DBCO-PEG10-Biotin is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups .
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Cat. No.: HY-151837
CAS No.: 2737202-66-1
Target:  

ADC Linkers

Research Areas:  

Others

H-L-Phe(4-NH-Poc)-OH (hydrochloride) is a click chemistry reagent containing an azide group. Used as a modified Phe or Tyr analogue in protein and peptide biosynthesis. Propargyloxycarbonyl, commonly abbreviated as Poc or Pryoc, can either be used as alkyne component for standard Click conjugation or in combination with tetrazine linkers in copper-free Diels-Alder type Click reactions. It also has applications as unusual protecting group for amines, hydroxy functions and as esters. All 3 are stable to neat TFA, but can be cleaved at ambient temperature with Co2(CO)8 in TFA:DCM. Deprotection with other transition metals like palladium have also been reported . H-L-Phe(4-NH-Poc)-OH (hydrochloride) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
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Cat. No.: HY-L258
437 compounds

In modern medicinal chemistry and chemical biology research, alkyne (-C≡C-) structures play an important role in click chemistry, bioorthogonal labeling, and the construction of functional molecules due to their unique linear geometry and high reactivity. In particular, driven by the development of copper-catalyzed azide-alkyne cycloaddition (CuAAC) and copper-free click reactions (SPAAC), terminal alkyne groups have become important “chemical handles” for building complex biomolecular systems.

The MCE Alkyne Compound Library contains 437 compounds designed for the construction of click chemistry reaction systems and the development of diverse functional molecules. In drug discovery, these structures serve as key reactive sites that can efficiently undergo click reactions with azide groups, enabling modular assembly of PROTAC molecules, construction of ADC linkers, and rapid synthesis of bioorthogonal labeling probes. In addition, alkyne groups exhibit high stability, mild reaction conditions, and excellent biocompatibility, allowing them to maintain reactivity in complex biological environments. This contributes to improved efficiency and controllability in drug development, making them indispensable chemical building blocks in modern drug design and functional molecular engineering.

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