1,4-Bis(1-methyl-5-phenylpentyl)piperazine dihydrobromide 101975-98-8 F 236 Piperazine, 1,4-bis(1-methyl-5-phenylpentyl)-, dihydrobromide Piperazine, 1,4-bis(6-phenyl-2-hexyl)-, dihydrobromide