67450-45-7 67450-78-6 CCRIS 3457 Propanamide, N-(3,4-dichlorophenyl)-N-(2-(dimethylamino)cyclopentyl)-, trans-, (Z)-2-butenedioate (1:1) U48753E trans-(+-)-3',4'-Dichloro-N-(2-(dimethylamino)cyclopentyl)propionanilide maleate