(2Z)-7-Chloro-2-[[[(1S)-2,2-dimethylcyclopropyl]carbonyl]amino]-2-heptenoic acid877674-77-6100 % similar Cilastatin82009-34-561 % similar Imipenem-cilastatin mixt.92309-29-038 % similar Cilastatin sodium81129-83-133 % similar 1-Cyclohexene-1-carboxylic acid636-82-831 % similar