Description_x000D_ General description_x000D_ Phenazines are heterocyclic compounds produced as secondary metabolites by bacteria._x000D_ Application_x000D_ Phenazine methosulfate is used with ascorbic acid to determine nitric oxide reductase activity._x000D_ Phenazine methosulfate has been used:_x000D_ • as a component of succinate dehydrogenase enzyme substrate solution_x000D_ • to induce superoxide radical generation in red blood cell suspensions and to study its influence on RBC deformability_x000D_ • as a component of complex II histochemistry media_x000D_ Packaging_x000D_ 1, 5, 10, 25 g in glass bottle_x000D_ 500 mg in glass bottle_x000D_ Biochem/physiol Actions_x000D_ Phenazine m ethosulfate (PMS) acts as a good electron acceptor. PMS is reduced non-enzymatically by (nicotinamide adenine dinucleotide) NADH and (nicotinamide adenine dinucleotide phosphate) NADPH.