(+)-Isoboldine 3019-51-0 4H-Dibenzo[de,g]quinoline-1,9-diol, 5,6,6a,7-tetrahydro-2,10-dimethoxy-6-methyl-, (S)- 6a.alpha.-Aporphine-1,9-diol, 2,10-dimethoxy- Isoboldine NSC113983 d-Isoboldine