(4S)-4-Ethyl-3,4,12,14-tetrahydro-4-hydroxy-3,14-dioxo-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinolin-9-yl Ester [1,4'-Bipiperidine]-1'-carboxylic Acid; 1H-Pyrano[3',4':6,7]indolizino[1,2-b]quinoline, [1,4'-Bipiperidine]-1'-carboxylic Acid deriv.; 10-[4-(1-Piperidino)-1-piperidinocarbonyloxy]camptothecin;

11-Desethyl Irinotecan is an impurity of the DNA topoisomerase inhibitor Irinotecan (I767500).