Nitroarginine, or Nω-nitro-L-arginine, is a nitro derivative of the amino acid arginine. It is an inhibitor of nitric oxide synthase and hence a vaso-constrictor and coronary constrictor. As such, it finds widespread use as a biochemical tool in the study of nitric oxide and its biological effects. Nitroarginine has been used in research studying coronary constriction, in the presence of midazolam vasodilatation was unaffected by nitroarginine. Nitroarginine is currently in clinical trials for treating patients with advanced solid tumors.

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.