10-Methoxycamptothecin 19685-10-0 1H-Pyrano(3',4':6,7)indolizino(1,2-b)quinoline-3,14(4H,12H)-dione, 4-ethyl-4-hydroxy-9-methoxy-, (S)- (9CI) CAMPTOTHECIN, 10-METHOXY- Camptothecin, methoxy- Camptothecine, 10-methoxy- (8CI) Methoxycamptothecin NSC 111533