60457-00-3 Bz-Ile-glu-gly-arg-pna Chromogenic substrate S-2222 L-Argininamide, N-benzoyl-L-isoleucyl-L-alpha-glutamylglycyl-N-(4-nitrophenyl)-, monohydrochloride S 2222 S 2765 S-2222 S-2765 benzoyl-Ile-Glu-Gly-Arg-p-nitroanilide