6-Ethoxy-7-methoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride 6272-91-9 ISOQUINOLINE, 6-ETHOXY-7-METHOXY-1,2,3,4-TETRAHYDRO-, HYDROCHLORIDE Isoquinoline, 6-ethoxy-1,2,3,4-tetrahydro-7-methoxy-, hydrochloride (9CI) NSC 33638