140400-20-0 182828-72-4 Benzenebutanoic acid, alpha-((2-((4-carboxyphenyl)amino)-2-oxo-1-(phenylmethyl)ethyl)amino)- Cfp-F-pab N-((1RS)-Carboxy-3-phenylpropyl)phe-para-aminobenzoate N-(1-Carboxy-3-phenylpropyl)phenylalanine-4-aminobenzoate alpha-((2-((4-Carboxyphenyl)amino)-2-oxo-1-(phenylmethyl)ethyl)amino)benzenebutanoic acid