Boldine STD - (6aS)-1,10-Dimethoxy-6-methyl-5,6,6a,7-tetrahydro-4H-dibenzo[de,g]quinoline-2,9-diol :
Boldine EP Impurity B - (6R,6aS)-2,9-Dihydroxy-1,10-dimethoxy-6-methyl-5,6,6a,7-tetrahydro-4H-dibenzo[de,g]quinoline N-oxide :
Boldine EP Impurity C - :(6aS)-1,10-Dimethoxy-5,6,6a,7-tetrahydro-4H-dibenzo[de,g]quinoline-2,9-diol;