1-Fenylpiperazin [Czech] 1-PHENYLPIPERAZINE 123317-04-4 2210-93-7 4004-95-9 5-23-01-00160 (Beilstein Handbook Reference) 92-54-6 AI3-26332 BRN 0132157 CCRIS 4334 EINECS 202-165-6 N-Phenylpiperazine Phenylpiperazine Piperazine, 1-phenyl-