1-(3-(4-(Diphenylmethyl)-1-piperazinyl)propyl)-5-phenyl-2-pyrrolidinone dihydrochloride H2O 109758-22-7 2-Pyrrolidinone, 1-(3-(4-(diphenylmethyl)-1-piperazinyl)propyl)-5-phenyl-, dihydrochloride, hydrate M.G. 16166