8-Bromo-octanoic acid 2,5-dioxo-pyrrolidin-1-yl ester
8-Bromo-octanoic acid 2,5-dioxo-pyrrolidin-1-yl ester is an alkane linker with a terminal bromide and an NHS ester. The bromide is a very good leaving group for nucleophilic substitution reactions. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.