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              UV Absorber 327Product name: UV Absorber 327 
 Chemical name: 2- (2 ′ -hydroxyl-3 ′, 5 ′ -itute butyl phenyl) -5-chlorobenzo triazole
 Synonyms:UV Absorber 327;2-(2′-Hydroxy-3′,5′-di-tert-butylphenyl)-5-chlorobenzotriazole;
 CAS number: 3864-99-1
 Molecular formula: C20H24ClN3O
 Molecular weight: 357.88
 EINECS number:223-383-8
 Structural formula: 
 Related categories: Catalysts and additives; plastic additives; ultraviolet absorbers; photostabilizer; organic chemical raw materials;
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              UV Absorbers 328Product name: UV Absorbers 328 
 Chemical name: 2-(2 ‘-hydroxy-3′,5 ‘-di-tert-amyl phenyl) benzotriazole
 Synonyms:
 2-(3,5-Di-tert-amyl-2-hydroxyphenyl)benzotriazole;HRsorb-328;2-(3′,5′-di-t-aMyl-2′-hydroxyphenyl)benzotriazole;2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)-Phenol;2-(2H-Benzotriazol-2-yl)-4,6-di-t;UV-328;2-(2H-Benzotriazol-2-yl)-4,6-di-tert-amylphenol;UVABSORBERUV-328
 CAS number: 25973-55-1
 Molecular formula: C22H29N3O
 Molecular weight: 351.49
 EINECS Number: 247-384-8
 Structural formula: 
 Related categories: chemical intermediates; ultraviolet absorbent; light stabilizer; organic chemical raw materials;
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              UV Absorbers 928Product name:UV Absorbers UV-928 
 Chemical name: 2- (2 ‘-hydroxyl-3′ -subkil-5′-tertiary phenyl) benzotriazole;
 2- (2-2H-benzotriazole) -6- (1-methyl-1-phenyl) ethyl-4- (1133-tetramethylbutyl) phenol;
 English name: UV Absorbers 928; 2- (2H-Benzotriazol-2-yl) -6- (1-methyl-1-phenylethyl) -4- (1,1,3,3-tetramethylbutyl) phenol;
 CAS number: 73936-91-1
 Molecular formula: C29H35N3O
 Molecular weight: 441.61
 EINECS Number: 422-600-5
 Structural formula: 
 Related categories: chemical intermediates; ultraviolet absorbent; light stabilizer; organic chemical raw materials;
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              UV Absorber 326Product name: UV absorber 326 
 Chemical name: 2 ′ – (2 ′ -hydroxyl-3 ′ -tert-butyl-5 ′ -methylphenyl) -5-chlorobenzotriazole
 English name: UV Absorber 326;
 2-(5-Chloro-2H-benzotriazol-2-yl)-6-(1,1-dimethylethyl)-4-methylphenol;
 CAS number:3896-11-5
 Molecular formula:C17H18ClN3O
 Molecular weight:315.8
 EINECS number:223-445-4
 Structural formula: 
 Related categories:UV absorbent; organic chemical raw materials;photostabilizer;
 
				