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)- CAMPTOTHECIN,10-METHOXY Camptothecin, methoxy- Camptothecine, 10-methoxy- Methoxycamptothecin NSC111533