(+)-Biotin N-succinimidyl ester is used in coupling reactions to amino acids, peptides and proteins through primary amines. It is used as amino reactive biotin reagent and in the preparation of biotinylated surfaces or polypeptides.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.