Paclitaxel-2′-succinate NHS ester is a derivative of paclitaxel featuring a succinate linker with its carboxyl group activated as an NHS ester. The NHS ester moiety exhibits high reactivity towards amino or hydroxyl groups, facilitating its conjugation with various molecules (such as peptides, proteins, antibodies, enzymes, or polymers). This compound is utilized in the development of nanomedicines and cancer research.