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Biotinylation Reagents

Biotin-PEG2-amido-Mal | CAS 305372-39-8

Catalog: TASK-36-1001210   CAS NO.: 305372-39-8
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Description

Biotin-PEG2-amido-Mal (Biotin-PEG2-NH-Mal) is a versatile and powerful tool for the selective labeling and conjugation of thiol-containing biomolecules. Biotin is a small molecule that binds with very high affinity to streptavidin and avidin, with a dissociation constant (Kd) in the femtomolar range. This strong and specific interaction is widely used in biochemical applications. PEG enhances the solubility and flexibility of the reagent, reducing steric hindrance and improving the efficiency of bioconjugation reactions. The amido linkage provides a stable and flexible connection between the biotin moiety and the maleimide group. The maleimide group reacts specifically with thiol groups (-SH) on cysteine residues in proteins, forming a stable thioether bond.

Specifications

CAS No.305372-39-8
FormulaC23H35N5O7S
Molecular Weight525.6
Purity>98%
Ship Within1 week
Storage Temp.-5℃
Shipping4-25℃ for up to 3 weeks
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