Cilastatin sodium81129-83-1100 % similar Cilastatin82009-34-550 % similar Imipenem-cilastatin mixt.92309-29-035 % similar (2Z)-7-Chloro-2-[[[(1S)-2,2-dimethylcyclopropyl]carbonyl]amino]-2-heptenoic acid877674-77-633 % similar