3-[[[(2s,4s)-4-mercapto-1-(4-nitrobenzyloxy)carbonyl-2-pyrrolidinyl]carbonyl]amino]benzoic acid cas 202467-69-4 Chemical Name:3-[[[(2S,4S)-4-Mercapto-1-(4-nitrobenzyloxy)carbonyl-2-pyrrolidinyl]carbonyl]amino]benzoic acid CAS No.: 202467-69-4 Molecular Fomula:C20H19N3O7S Chemical Structure: Molecular Weight:445.45 Appearance:Off-White powder Assay: 98.0%min…