63937-51-9 ISOQUINOLINE, 1,2,3,4-TETRAHYDRO-1-(3,4-DICHLOROPHENETHYL)-2-METHYL-6,7-METHYLEN Isoquinoline, 1,2,3,4-tetrahydro-1-(3,4-dichlorophenethyl)-2-methyl-6,7-methylenedioxy-, hydrochloride