Used as an intermediate in the synthesis of targeted cancer therapies, particularly in the development of antibody-drug conjugates (ADCs). Its structure allows for selective alkylation of DNA, making it valuable in creating cytotoxic agents that can be directed specifically to tumor cells. The carboxylic acid group enables conjugation to monoclonal antibodies via linker systems, facilitating controlled drug delivery. This compound is especially explored in treatments for hematological malignancies due to its potent mechanism of action and modifiable release profile.