Synonyms: 6,7-Isoquinolinediol,1-[(3,4-dihydroxyphenyl)methyl]-1,2,3,4-tetrahydro-2-methyl-, (S)-;(+)-Laudanosoline;(1)-1-((3,4-Dihydroxyphenyl)methyl)-1,2,3,4-tetrahydro-2-methylisoquinoline-6,7-diol hydrobromide;1-(3,4-dihydroxybenzyl)-2-methyl-1,2,3,4-tetrahydroisoquinoline-6,7-diol;