... Description Details:[Product type]: active pharmaceutical ingredient [English name]: Camptothecin[Molecular formula]: C20H16N2O4[Molecular weight]: 348. 36[ C A S ... and head, bladder cancer and lung cancer etc. [Character]: Camptothecin is a quinoline-based alkaloid found in the barks of ... . The whole Chinese dove tree contains the alkaloid-Camptothecin. Anti-cancer is the major pharmacodynamic effect.