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          2. Dafeng Tiansheng Pharmaceutical Co., Ltd.(Dafeng Huashu Pharmaceutical Co., Ltd.)
            Bulk drug
            UV adsorbent
            Light stabiliser
            Category: benzotriazole
            CAS No.: 70321-86-7
            Chemical structure:
            Chemical name: UV-234; 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol; 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1 phenylethyl)phenol; UV absorber-234; ; 2-(2H-benzotriazol-2-yl)-4,6-bis(2-phenylpropan-2-yl)phenol; 3,3'-(3,3'-dimethoxybiphenyl-4,4'-diyl)bis(2,5-diphenyl-2H-tetrazol-3-ium) dichloride - 1H-benzotriazole (1:1); UV Abosorber 234; UV 234
            Molecular formula: C30H29N3O
            Molecular weight: 447.6
            Technical index:
            appearance light yellow powder
            content 99.0%min
            melting point 137~141℃
            volatile matter 0.2%max
            ash content 0.1%max
            light transmittance 460nm 97%min
            550nm 98%min

            OCTASORB UV-234 is appropriate for Makrolon. In addition, it has protection effect on PBT, PET, PA, polyacetal and crylic acid.

            Packaging: 20kg fiber can or according to customer requirement
            Storage: in seal, in dry and in dark
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