(9R)-Exatecan

(9R)-Exatecan (DX8951f) is the (1R,9S) stereoisomer of Exatecan (HY-13631). Exatecan (DX-8951) is a DNA topoisomerase I inhibitor, with an IC50 of 2.2 μM (0.975 μg/mL), and can be used in cancer research.