(-)-Tetrahydroberberine d-camphorsulfonate 1-Tetrahydroberberine-camphor sulfonate 6H-Benzo(g)-1,3-benzodioxolo(5,6-a)quinolizine, 5,8,13,13a-tetrahydro-9,10-dimethoxy-, (S)-, compd. with (1S)-7,7-dimethyl-2-oxobicyclo(2.2.1)heptane-1-methanesulfonic acid 76648-39-0