Synonyms: 6,7-Isoquinolinediol,1-(3,4-dihydroxybenzyl)-1,2,3,4-tetrahydro-, hydrobromide (8CI);6,7-Isoquinolinediol, 1-[(3,4-dihydroxyphenyl)methyl]-1,2,3,4-tetrahydro-,hydrobromide (9CI); (?à)-Tetrahydropapaveroline hydrobromide; NSC 118071; Tetrahydropapaverolinebromide; Tetrahydropapaveroline hydrobromide