Nonproprietaryname:Cilazaprilanhydride Chemicalname:(1S,9S)-9-[(1S)-(1-Ethoxycarbonyl-3-phenylpropyl)amino]-10-oxooctahydro-6Hpyridazino[1,2-a][1,2]diazepine-1-carboxylicacidmonohydrate Molecularformula:C22H31N3O5·H2O Molecularweight:435.51 Description: Cilazapriliswhitetopaleyellowishwhitecrystalorcrystallinepowder.Itisfreelysolubleinmethanolanddichloromethane,solubleinethanol(99.5)andaceticacid(100),andveryslightlysolubleinwater.Itgraduallyturnsyellowonexposuretolight. Meltingpoint:Around101°C(withdecomposition