Product name: 2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol Alias: 2-(2-Hydroxy-3,5-dipenryl-phenyl) benzotriazole; 2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)-phenol; 2-(2H-hydroxy-3-5-Di-tert-Amyllphenyl)benzotriazole; UV-328; Tinuvin 328; Primesorb328; Ultraviolet absorbent UV-328; 2-(2'-Hydroxy-3',5'-di-tert-Pentyl Phenyl)-Benzotriazole; BHSORB-328; 2-(2'-Hydroxy-3',5-dipenryl-phenyl) benzotriazole; UV absorber-328; UV absorber UV-328; 2-(2H-benzotriazol-2-yl)-4,6-bis(2-methylbutan-2-yl)phenol; Ultraviolet absorberUV-328 CAS No.: 25973-55-1 EC No.: 247-384-8 Molecular weight: 351.4852 Structural Formula: Assay: ≥99% Appearance: white-Light yellow powder Assay: ≥99% Melting point: 80-83°C Loss on dry: ≤0.5% Ash: ≤0.1% Uses: As a UV absorbent, this product is mainly suitable for polyolefin, polystyrene, polyvinyl chloride (PVC), polyurethane, polyester, etc. Maximum absorption wavelength 345 nm. The general dosage is about 1%.

CAS NO:25973-55-1

EC NO:247-384-8

Molecular Formula:C₂₂H₂₉N₃O

Molecular Weight:351.4852

Synonyms:;2-(2-Hydroxy-3,5-dipenryl-phenyl) benzotriazole;2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)-phenol;2-(2H-hydroxy-3-5-Di-tert-Amyllphenyl)benzotriazole;UV-328;Tinuvin 328;Primesorb328;Ultraviolet absorbent UV-328;2-(2'-Hydroxy-3',5'-di-tert-Pentyl Phenyl)-Benzotriazole;BHSORB-328;2-(2'-Hydroxy-3',5-dipenryl-phenyl) benzotriazole;UV absorber-328;UV absorber UV-328;2-(2H-benzotriazol-2-yl)-4,6-bis(2-methylbutan-2-yl)phenol;Ultraviolet absorberUV-328;2-(2H-Benzotriazol-2-yl)-4,6-di-tert-amylphenol;Ultraviolet absorber UV-328;UV 328;2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol;

Molecular Structure: