Used in cancer research as a metabolite and analog of paclitaxel, 7-epipaclitaxel shows potential in studying drug resistance mechanisms and metabolic pathways in chemotherapy. It helps scientists understand how structural changes in taxane molecules affect biological activity and efficacy. Though less active than paclitaxel, it serves as a reference compound in pharmacokinetic studies and analytical testing of paclitaxel-based formulations. Its presence in biological samples can indicate metabolic processing, making it useful in drug development and monitoring.