Synonyms: 10-Hydroxy-CPT;Camptothecin, hydroxy-;1H-Pyrano(3,4:6,7)indolizino(1,2-b)quinoline-3,14(4H,12H)-dione, 4-ethyl-4,9-dihydroxy-, hydrate, (S)-;(4S)-4-Ethyl-4,9-dihydroxy-1H-pyrano[3,4:6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione;Camptothecine, 10-hydroxy- (8CI);Hydroxycamptothecine;1H-Pyrano(3,4:6,7)indolizino(1,2-b)quinoline-3,14(4H,12H)-dione-,4-ethyl-4,9-dihydroxy-, (S)- (9CI);