Boc-Glu(OBzl)-OSu is a critical reagent utilized in peptide synthesis and bioconjugation processes. This high-quality compound, featuring a benzyl ester-protected glutamic acid derivative with an N-hydroxysuccinimide (NHS) ester group, plays a pivotal role in the precise modification and bioconjugation of peptides and proteins. Renowned for its exceptional purity and reliability, Boc-Glu(OBzl)-OSu has become an indispensable tool in the field of chemical biology, bioconjugation, and pharmaceutical research.