2H-1-Benzopyran-4-one, 2,3-dihydro-6,7-dimethyl-3-((4-methyl-1-piperazinyl)methyl)-, 2HCl 4-Chromanone, 6,7-dimethyl-3-((4-methyl-1-piperazinyl)methyl)-, dihydrochloride 96402-30-1