10-Deacetylbaccatin III (10-DAB) is primarily used as a key starting material in the semi-synthesis of paclitaxel, a widely used chemotherapy drug. It serves as a precursor in the production of taxane derivatives, which are essential for developing anticancer medications. Due to its structural similarity to paclitaxel, 10-DAB is a valuable intermediate in pharmaceutical manufacturing, enabling the creation of effective treatments for various cancers, including ovarian, breast, and lung cancer. Its role in the synthesis process helps streamline the production of these life-saving drugs, making it a critical component in the pharmaceutical industry.