Bumetrizole is an ultraviolet light absorber (UVA) of the hydroxyphenyl benzotriazole class, which imparts outstanding light stability to plastics and other organic substrates. Bumetrizole is also approved by the FDA as a stabilizer in polymers used in producing, manufacturing, packaging, processing, and transporting food. Bumetrizole has a wide range of indirect food approvals in polyolefins. It has a low volatility at high temperatures and high resistance to thermal degradation and can, therefore, be used without significant loss or decomposition in the polyolefin compounding and molding processes.