Synonyms : 9-Dimethylaminomethyl-10-hydroxycamptothecin, Hycamtamine, Hycamtin, NSC-609699, Nogitecan Hydrochloride, SK&F-104864-A, SKF-104864-A, Topotecan Hydrochloride, Topotecan Monohydrochloride, (S)-Isomer, 9 Dimethylaminomethyl 10 hydroxycamptothecin, NSC 609699