1-(4-Chlorobenzhydryl)-4-methylpiperazine dihydrochloride 1-(p-Chloro-alpha-phenylbenzyl)-4-methyl-piperazine dihydrochloride 129-71-5 AH 289 Chlorcyclizine dihydrochloride Di-paralene-2-hydrochloride Histantine dihydrochloride N-Methyl-N'-(4-chlorobenzhydryl)piperazine dihydrochloride Perazil dihydrochloride Piperazine, 1-(p-chloro-alpha-phenylbenzyl)-4-methyl-, dihydrochloride Trihistan