3413-58-9 Cinchonan-9-ol, 6'-ethoxy-10,11-dihydro-, monohydrochloride, (8.alpha.,9R)- Ethylhydrocupreine hydrochloride Hydrocupreine, O-6'-ethyl-, monohydrochloride Hydrocupreine, O-ethyl-, hydrochloride Hydrocupreine, ethyl ester, hydrochloride NSC5361 Neumolisina Numoquin hydrochloride Optochin hydrochloride Optoquin hydrochloride WLN: T66 BNJ HO2 EYQ- DT66 A B CNTJ G2 &GH