1-Piperidinebutanamide, 4-(4-chloro-3-(trifluoromethyl)phenyl)-4-hydroxy-N,N-dimethyl-alpha,alpha-diphenyl-, monohydrochloride 34552-82-4 Fluperamide hydrochloride NIH 8636 NIH 8715 UM 866 UM 900