Chemical name: 2-(2H-benzotriazol-2-yl)-6-dodecyl-4-methyl phenol CAS No.:125304-04-3 Molecular formular:C25H35N3O Molecular weight:393.6 Appearance: Light amber viscous liquid Assay, %: 95min. Ash, %: 0.1max. Loss on Drying, %: 2.0max. Transmittance: 460nm 95%min. 500nm 97%min. UV ABSORBER HOSORB-UV571 is a liquid benzotriazole type UV absorber which imparts excellent light stability to the various polymers. It can be used for thermoplastic PUR, coating, the rigid and plastic PVC, PVB, PMMA, EVA, heat curing unsaturated resin, PA, PET , PUR coil, PP fiber. It is also suitable for latice, wax, adhesive and styrene copolymer, elastomer and polyolefin.