Cystemustine is a DNA inhibitor (a chloroethyl nitrosourea, CENU). Cystemustine can cause DNA cross-linking, thereby inhibiting the proliferation of tumor cells. Cystemustine can also exert cytotoxic effects by interfering with the cell cycle, inducing cell re-differentiation, and altering phospholipid metabolism. Cystemustine exhibits high anti-tumor activity and a relatively short plasma half-life in mice. Cystemustine can be used for the study of various malignant tumors, including melanoma, glioma, renal cancer, head and neck cancer, and colorectal cancer, etc.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.