63982-19-4 CARBAMIC ACID, METHYL-, (1,2,3,4-TETRAHYDRO-2-METHYL)-6,7-ISOQUINOLYLENE ESTER, Carbamic acid, methyl-, (1,2,3,4-tetrahydro-2-methyl)-6,7-isoquinolylene ester, (2:1), hydrochloride Isoquinoline, 2-methyl-1,2,3,4-tetrahydro-6,7-bis(N-methylcarbamyloxy) hydrochloride T-1968