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          2. Dafeng Tiansheng Pharmaceutical Co., Ltd.(Dafeng Huashu Pharmaceutical Co., Ltd.)
            Bulk drug
            Intermediate
            ODA
            UV adsorbent
            Photoinitiator
            Antioxidant
            Light stabiliser
            UV-320
            Category: benzotriazole
            CAS No.: 3846-71-7
            Chemical name: 2H-Benzotriazol-2-yl-4,6-di-tert-butylphenol; 2-(2-Hydroxy-3,5-di-tert-butylphenyl)-2H-benzotriazole; Hydroxydibutylphenylbenzotriazole; 2-(3,5-Di-tert-butyl-2-hydroxyphenyl)-2H-benzotriazole; 2-(2-Hydroxy-3,5-di tert-butylphenyl)benzotriazole; TINUVIN 320; ULTRAVIOLET ABSORBER UV-320; UV-320; 2-BENZOTRIAZOLE-2-YL-4,6-DI-TERT-BUTYLPHENOL; 2-(2'-HYDROXY-3',5'-DI-TERT-BUTYLPHENYL)BENZOTRIAZOLE; 2-(2-HYDROXY-3,5-DI-TERT-BUTYLPHENYL)BENZOTRIAZOLE; 2-(2H-BENZOTRIAZOL-2-YL)-4,6-DI-T-BUTYLPHENOL; Ultraviolet absorbent UV-320
            Molecular formula: C20H25N3O
            Molecular weight: 323.4
            Structural formula:
            Technical index:
            appearance white powder
            content(HPLC) 99.0%min
            melting point 152-156℃
            volatile matter 0.2%max
            ash content 0.1%max
            light transmittance 440nm 97%min
            500nm 98%min
            Application:

            OCTASORB UV-320 is high-efficient light stabilizer, widely used in plastic and other organics, including, unsaturated polyester, PVC, polyurethane, polyamide, synthetic fibre fields.

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