Biotin-PEG-COOH (MW 2000)

Description

Biotin-PEG-COOH MW 2000 is a linear heterobifunctional PEG compound with biotin and carboxylic acid functional groups. Biotin can bind to avidin and streptavidin with high specificity and affinity. Biotin-PEG-COOH MW 2000 can be used to biotin-label antibodies, proteins and other macromolecules containing primary amines in the presence of a condensing agent.