Cat. # Quantity Price Lead time
2546-50mg 50 mg $125 in stock
2546-100mg 100 mg $185 in stock
2546-1g 1 g $990 in stock
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Biotin-PEG2-alkyne is a click chemistry biotinylation tool. This reagent allows the labeling of azide-containing molecules with biotin via copper-catalyzed click reaction. Biotin-labeled biomolecules can be bound to avidin or streptavidin for further purification and detection.

This structure of biotin alkyne features a hydrophilic PEG2 linker that separates biotin residue from the target molecule for efficient binding with streptavidin. Its linker also enhances aqueous solubility to facilitate conjugation.

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Biotin azide is a reagent for click chemistry labeling with biotin, a well-known affinity probe to streptavidin.

Biotin alkyne

Biotin alkyne is a reactive affinity label which can be attached to biomolecules via click reaction.


Biotin alkyne is a reagent for click chemistry labeling with biotin, an affinity probe to streptavidin.

General properties

Appearance: white powder
Molecular weight: 369.48
CAS number: 2227450-68-0
Molecular formula: C17H27N3O4S
Solubility: in water, DMSO, DCM, DMF
Quality control: NMR 1H and HPLC-MS (95+%)
Storage conditions: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate.
MSDS: Download
Product specifications
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