80894-73-1 L-Argininamide, N-(methylsulfonyl)-D-norleucylglycyl-N-(4-nitrophenyl)- Mes-nleu-gly-arg-NN Methylsulfonyl-D-norleucyl-glycyl-arginine-para-nitroanilide Methylsulfonylnorleucyl-glycyl-arginine-4-nitroanilide