Cat. # Quantity Price Lead time
3107-100mg 100 mg $190 in stock
3107-1g 1 g please inquire in stock
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Biotin-PEG4-iodide is a highly reactive biotinylation reagent. The iodide group participates in nucleophile substitution reactions and can readily and efficiently interact with various C-, N-, O-, and S-nucleophiles. Biotin-labeled compounds can then be linked to avidin or streptavidin for further purification or detection.

This reagent features a long PEG4-linker that separates the biotin residue from the target molecule, ensuring efficient binding to avidin or streptavidin. The linker also increases the compound’s water solubility, thereby facilitating bioconjugation.

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

Biotin-PEG4-NHS ester

PEG4-containing activated ester for simple and efficient biotin labeling of antibodies, proteins, and other primary amine-containing biomolecules.

Alkyne-PEG2-NHS ester

Bifunctional hydrophilic linker with NHS ester and terminal alkyne functional group based on diethyleneglycol (PEG2).
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General properties

Appearance: white solid
Molecular weight: 529.44
Molecular formula: C18H32IN3O5S
Solubility: good 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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