1-(Phenylacetyl)piperazine (CAS NO.88372-33-2), its Synonyms are 2-Phenyl-1-piperazin-1-yl-ethanone ; Ethanone, 2-phenyl-1-(1-piperazinyl)- ; 2-Phenyl-1-(piperazin-1-yl)ethan-1-one ; 2-phenyl-1-(piperazin-1-yl)ethanone .