2,3-Dimethoxy-12,12a-dihydro-12-oxodibenzo[b,g] indoloisoquinolinium sulfate AIDS-156659 AIDS156659 NSC627787 (SULFATE SALT) Sulfuric acid compound with 2,3-dimethoxy-12H-7lambda~5~-indolo[2,1-a]isoquinolin-12-one (1:1) {2,3-Dimethoxy-12,12a-dihydro-12-oxodibenzo[b,g]} indoloisoquinolinium sulfate