CAS: 175613-38-4

9-Hydroxymethyl-10-hydroxy camptothecin (9OHC) is a metabolite of camptothecin. It is an impurity with a purity of 99.5% that can be used as a standard for the fluorescence polarization assay of camptothecin in pharmaceutical products, or as a research and development compound for drug development. 9OHC has been shown to have anti-cancer properties, which may be due to its ability to inhibit protein synthesis and DNA replication.