Description
Biotin-PEG4-azide is a biotinylation reagent for click chemistry, supplied at a minimum purity of 95 % with CAS number 1309649-57-7 and empirical formula C₂₀H₃₆N₆O₆S. Its molar mass is 488,6 g/mol. The molecule combines a biotin affinity handle with a tetraethylene glycol (PEG4) spacer and a terminal azide, enabling copper-catalysed or strain-promoted azide–alkyne cycloaddition for selective conjugation to alkyne-tagged biomolecules, surfaces, or probes. This is intended for research workflows in organic chemistry and bioconjugation laboratories that require reliable biotin tagging via click chemistry. The PEG4 linker improves aqueous solubility and reduces steric hindrance during streptavidin or avidin capture. Offered from manufacturer baseclick, the reagent supports labelling, pull-down, and detection strategies in chemical biology and related applications. Handle according to laboratory good practice for azide-containing organic compounds and consult the accompanying safety documentation before use.
This article is part of Coenzymes, nucleotides & vitamins, in Biochemicals & reagents.
Key features
- Appearance: white to grey amorphous solid
- Purity (HPLC): ≥95 %
- CAS number: 1309649-57-7
- Pack sizes: 5 mg, 10 mg
- Purity: min. 95 %
- Empirical formula: C₂₀H₃₆N₆O₆S
- Molar mass: 488,6 g/mol
- Storage temperature: -20 °C
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Biotin-PEG4-azide, min. 95 %, 5 mg, plastic
What is this article?
Biotin-PEG4-azide, min. 95 %, 5 mg, plastic is the article on this page. Luminix Health distributes baseclick for laboratory use. It sits in Coenzymes, nucleotides & vitamins, inside Biochemicals & reagents, in Microbiology lab supplies.
Coenzymes, nucleotides and vitamins are the small molecules enzymes and cells consume: NAD, ATP, a vitamin cofactor. Purity, salt form and hydration are the specification, and many are unstable in solution or in the light. The lot is stored as the label says, often cold.
A biochemical is a molecule of life, sold as a reagent: an amino acid, a sugar, a nucleotide, a lipid, an enzyme, an antibiotic. The difference from a bulk chemical is that the use is a biological one, and the impurities that matter are the ones that change that use. An enzyme is specified by activity, not only by mass. An antibiotic is specified by potency. Papers are on PubMed. Structures are on PubChem. Strains and lines that consume these reagents are at ATCC.
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The category is Biochemicals & reagents. The sub-category is Coenzymes, nucleotides & vitamins. The catalogue is Microbiology lab supplies.
Shelves beside this one are Amino acids & peptides, Carbohydrates & sugars, Biochemicals (other), Enzymes & substrates, Antibiotics & antimycotics, Lipids, steroids & fatty acids and Detergents & surfactants.
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