Description
A DNA topoisomerase I inhibitor; inhibits DNA topoisomerase I and increases the fraction of supercoiled DNA in a cell-free assay; inhibits the growth of A121 ovarian and H460 lung cancer cells (IC50s = 4 and 2 nM, respectively); inhibits the growth of doxorubicin-susceptible and -resistant MCF-7 breast cancer cells (IC50s = 2 and 3 nM, respectively); reduces tumor growth in a U937 leukemia mouse xenograft model at 4 mg/kg twice per week
Formal name: (4S)-ethyl-4-hydroxy-10-nitro-1H-pyrano[3′,4′:6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione
Synonyms: 9-nitro-20(S)-Camptothecin|RFS 2000
Molecular weight: 393.4
CAS: 91421-42-0
Purity: ≥98%
Formulation: A crystalline solid