(Benzhydryl-4 piperazinyl-1)-2 methyl-9 purine dichlorhydrate [French] 69440-60-4 9-Methyl-2-(4-diphenylmethyl-1-piperazinyl)-9H-purine dihydrochloride 9H-Purine, 2-(4-benzhydryl-1-piperazinyl)-9-methyl-, dihydrochloride