The molecule is the N-tosyl derivative of L-phenylalanyl chloromethyl ketone. It has a role as an alkylating agent and a serine proteinase inhibitor. It is a sulfonamide and an alpha-chloroketone. It contains a L-phenylalanyl group.
N-[(2S)-4-chloro-3-oxo-1-phenylbutan-2-yl]-4-methylbenzenesulfonamide