Biotin-PEG4-Picolylazide? , ≥95% , 2222687-71-8

CAS NO.：2222687-71-8

Empirical Formula: C27H42N8O7S

Molecular Weight: 622.74

MDL number: MFCD29052186

PRODUCT Properties

• form: Oil
• color: Colorless to off-white

Description and Uses

Biotin-PEG4-Picolyl azide is a biotin reagent which can be conjugated with alkyne-containing biomolecules. This biotin reagent incorporates a copper-chelating motif that dramatically accelerates the Cu(I)-catalyzed Click Chemistry. The use of Biotin Picolyl Azide instead of conventional Biotin Azide allows for at least a tenfold reduction in the concentration of the copper catalyst without sacrificing the efficiency of labeling. The hydrophilic spacer arm provides better solubility to the labeled molecules in aqueous media.

Biotin-PEG4-Picolyl azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Biotin-PEG4-Picolyl azide is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.