7356-73-2 ISOQUINOLINE, N-METHYL-6-ETHOXY-7-METHOXY-1,2,3,4-TETRAHYDRO-, HYDROCHLORIDE Isoquinoline, 6-ethoxy-1,2,3,4-tetrahydro-7-methoxy-2-methyl-, hydrochloride (9CI) N-Methyl-6-ethoxy-7-methoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride NSC 33641