1-(4-Dibenzothienylmethyl)-4-methylpiperazine hydrochloride hydrate (1:2:1) 19805-67-5 4-(4-Methylpiperazinomethyl)dibenzothiophene dihydrochloride hydrate Piperazine, 1-(4-dibenzothienylmethyl)-4-methyl-, hydrochloride, hydrate (1:2:1)