68982-90-1 EINECS 273-486-7 L-Phenylalaninamide, N-(3-carboxy-1-oxopropyl)glycylglycyl-N-(4-nitrophenyl)- N-(3-Carboxypropionyl)glycylglycyl-N-(p-nitrophenyl)-3-phenyl-L-alaninamide N-Succinylglycyl-phenylalanine-4-nitroanilide