1-Benzyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline 14919-82-5 17459-85-7 6,7-Isoquinolinediol, 1,2,3,4-tetrahydro-1-(phenylmethyl)- 6,7-Isoquinolinediol, 1-benzyl-1,2,3,4-tetrahydro- dl-1-Benzo-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline