112283-16-6 Benzoyl-beta-alanyl-glycyl-arginine-4-nitroanilide acetate Chromozym U L-Argininamide, N-benzoyl-beta-alanylglycyl-N-(4-nitrophenyl)-, monoacetate N-Benzoyl-beta-alanylglycyl-N-(4-nitrophenyl)-L-argininamide monoacetate