Pyridoxine-phosphate is a vitamer of Vitamin B6. In man vitamin B(6) ingested from the diet exists as six different vitamers, pyridoxal (PL), pyridoxamine (PM), pyridoxine (PN), pyridoxal 5'-phosphate (PLP), pyridoxamine 5'- phosphate (PMP) and pyridoxine 5'-phosphate (PNP). It is a substrate for pyridoxine-5'-phosphate oxidase (PNPO) and pyridoxal phosphate phosphatase (PDXP). PNPO deficiency is responsible of severe neonatal encephalopathy.

Dibasic lead phosphite is slight white, sweet and toxic ionic compound. Dibasic lead phosphite can dissolve in hydrochloric acid, and nitric acid, but not in water. Dibasic lead phosphite is antioxidant; it has the excellent performance of resistance to ultraviolet ray, cold, and ageing. Mainly used for the heat stabilizer of Polyvinyl Chloride opaque products because of good insulation, weatherablity and ultraviolet radiation absorbency.