This product is a kind of ultraviolet ray absorber and good stabilizer for polyolefins. It can be used in package material which is in touch with food. It is also used in PVC,ABS adhesives,petroleum products and rubber products. Not only it has good soluble with polyolefins,but also it has excellent antioxidition porperty. A good synegetic result can be produced by combination of HALS and UV-326. The maximum absorption peak (reference):356 nanometer.