1-(4-Cyclopentylphenyl)-4-(4-methyl-1-piperazinyl)-1-butanone hydrochloride hydrate (2:4:1) 1-Butanone, 1-(4-cyclopentylphenyl)-4-(4-methyl-1-piperazinyl)-, hydrochloride, hydrate (2:4:1) 112446-91-0