54799-93-8 Benzoyl-phe-val-arg-p-nitroanilide Bz-Phe-val-arg-paranitroanilide Bzphevalargnan L-Argininamide, N-benzoyl-L-phenylalanyl-L-valyl-N-(4-nitrophenyl)- N-Benzoyl-L-phenylalanyl-L-valyl-L-arginine-p-nitroanilide Nalpha-Benzoyl-L-phenylalanyl-L-valyl-L-arginine-p-nitroanilide S 2160 S-2160