76402-49-8 L-Valinamide, N-(3-carboxy-1-oxopropyl)-L-tyrosyl-L-leucyl-N-(4-nitrophenyl)- Stlvpna Suc-tyr-leu-val-p-nitroanilide Suc-tyr-leu-val-pna Succinyl-tyrosyl-leucyl-valine-4-nitroanilide