63982-18-3 CARBAMIC ACID, METHYL-, (1,2,3,4-TETRAHYDRO-2-METHYL)-5,6-ISOQUINOLYLENE ESTER, Carbamic acid, methyl-, (1,2,3,4-tetrahydro-2-methyl)-5,6-isoquinolylene ester, (2:1), hydrochloride Isoquinoline, 2-methyl-1,2,3,4-tetrahydro-5,6-bis-(N-methylcarbamyloxy) hydrochloride T-1970