Displaying 12 results of Paclitaxel Stable Isotopes Paclitaxel stable isotopes are a type of drug used in cancer treatment. They are isotopically labeled forms of paclitaxel, a chemotherapy medication derived from the Pacific yew tree. The stable isotopes provide a useful tool for researchers to study the pharmacokinetics and metabolism of paclitaxel in vivo, as well as for the development of novel cancer therapies.