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.

Phosphamidon is an organophosphorus insecticide widely used in agriculture, which consists of two isomers Z and E. Phosphamidon is highly toxic to mammals and was shown to inhibit acetylcholinesterase in the brain of the hen.