NHS-SS-Ac（Cat No.:I043524）is a crosslinking reagent used in bioconjugation and protein labeling applications. It features an NHS (N-hydroxysuccinimide) ester group that reacts with primary amines on proteins or peptides, forming stable amide bonds. The reagent includes a disulfide linkage (SS), allowing for reversible conjugation under reducing conditions. This property makes NHS-SS-Ac useful in applications such as targeted drug delivery, antibody conjugation, and biomarker detection. Its versatility in forming controlled, stable conjugates with proteins and peptides has made it a valuable tool in biotechnology and biomedical research.