1,3-Dioxolo[4,5-g]isoquinoline, 5,6,7,8-tetrahydro-, hydrochloride 15052-05-8 6,7-Methylenedioxy-1,2,3,4-tetrahydroisoquinoline hydrochloride Isoquinoline, 6,7-methylenedioxy-1,2,3,4-tetrahydro-, hydrochloride NSC112981 WLN: T C566 DO FO KM EH&&TJ &GH