Synonyms: (4s)-4-ethyl-4-hydroxy-1h-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4h,12h)-dione 6-oxide;87988-61-2;Camptothecin N-oxide;NSC106748;AC1L6IAJ;AC1Q224F;KST-1A8688;AR-1A6084;NSC-106748;1H-Pyrano[3',7]indolizino[1,2-b]quinoline-3,14(4H,12H)- dione, 4-ethyl-4-hydroxy-, 6-oxide-, (S)-