Used primarily as an intermediate in the synthesis of pharmaceuticals, particularly in the production of cytotoxic agents for cancer treatment. It serves as a building block in the development of nitrogen mustards, which are alkylating agents that interfere with DNA replication in cancer cells. Due to its bifunctional alkylating capability, it is also explored in cross-linking applications for polymers and resins, enhancing thermal and mechanical stability. Additionally, it has been investigated in the design of targeted drug delivery systems where controlled reactivity is required. Handling requires caution due to potential genotoxicity and reactivity with biological nucleophiles.