2- 2’-hydroxy-5 -methyl phenyl benzotriazole

FIGURE 7. Absorption spectra of nonluminescent chelates 2-hydroxy-benzophenone (1) 2-hydroxy-4-methoxy-benzophenone (2) and 2(2 hydroxy-5 methyl-phenyl)benzotriazole (3) in CCI4. 

Hydroxyphenyl benzotriazoles have the structure (XV) where X is H or Cl (chlorine shifts the absorption to longer wavelengths), Ri is H or branched alkyl, and R2 is CH3 to CgHi7 linear and branched alkyl (Ri and R2 increase the affinity to polymers). Some technically important materials in this class are 2-(2 -hydroxy-5 -methyl-phenyl)-benzotriazole, 2-(2 -hydroxy-3 -5 -(Ji.fert-butyl-phenyl)-benzotriazole, and 2-(2 -hydroxy-3, 5 -di-tert-butyl-phenyl)-5-chlorobenzotriazole. In comparison with 2-hydroxybenzophenones, the 2-(2 -hydroxyphenyl) benzotriazoles have higher molar extinction coefficients and steeper absorption edges towards 400 nm. 

Table 3.4 Influence of stabilization on polystyrene disooloration (injection molded plates, 2 mm) during exposure in the weatherometer WRC 600 AO n-ootadecyi-3-(3 , 5 -di-tert-butyt4 -hydroxy-phenyljpropionate (IRGANOX 1076), UVA 2-(2,2 -hydroxy-5 -methyl-phenyl)benzotriazole (TINUVIN P), HALS sebacic aoid bis-2,2,6,6 tetramethyt-4-piperidylester (TINUVIN 770) [86]...

Di-t-butyl-p-cresol, (2-hydroxy-5-methyl-phenyl) benzotriazole... 

Tinuvin 770 (2-(2-Hydroxy-3,5-bis( 1-methyl- l-phenylether)phenyl)benzotriazole) 52829-07-9... 

Bis [2-hydroxy-5-methyl-3-(benzotriazol-2-yl) phenyl] methane CAS 30653-05-5 Empirical C27H22N6O2 Properties Powd. m.w. 462 m.p. 275 C Uses UV light absorber for engineering resins, ABS, cellulosics, epoxy, polyester, PS, flexible/rigid PVC, VDC Trade Name Synonyms Mixxim BB/200 [Fairmount]... 

CAS 3896-11-5 EINECS/ELINCS 223-445-4 Synonyms 2-t-Butyl-6-(5-chloro-2H-benzotriazol-2-yl)-p-cresol 2-t-Butyl-6-(5-chloro-2H-benzotriazol-2-yl)-4-methylphenol 2-(3 -t-Buty I-2 -hydroxy-5 -methyl phenyl )-5-chlorobenzotriazole 2-(2 -Hydroxy-3 -t-butyl-5 -methylphenyl)-5-chlorobenzotriazole 2-(2-Hydroxy-3-t-butyl-5-methylphenyl)-5-chlorobenzotri azole UV Absorber 6 Classification Benzotriazole Empihcal C17H18CIN3O... 

UV absorber, butyrate metal lacquers Benzophenone-11 UV absorber, cellulosics Benzophenone-3 Bis [2-hydroxy-5-methyl-3-(benzotriazol-2-yl) phenyl] methane 4-Dodecyloxy-2-hydroxybenzophenone Drometrizoie N-(p-Ethoxycarbonylphenyl)-N -ethyl-N -phenylformamidine N -(4-Ethoxycarbonylphenyl)-N -methyl-N -phenylformamidine 2-(2 -Hydroxy-3,5 -di-t-amylphenyl) benzotriazoie Phenyl salicylate 2,4,4 -Trihydroxybenzophenone UV absorber, cleaners Benzophenone-11 UV absorber, coatings Benzophenone-8 Bumetrizole 2-(3, 5 -Di-t-butyl-2 -hydroxyphenyl)-5-chlorobenzotriazole Drometrizoie 2-Ethyl, 2 -ethoxy-oxalanilide... 

Bis [2-hydroxy-5-methyl-3-(benzotriazol-2-yl) phenyl] methane Mixxim BB/200 30657-38-6 Lysidone ... 

Benzotriazol 6-Amino-5-methyl-2-(4-sulfo-phenyl)- X/3, 427 Thioharnstoff l-(4-Carboxy-3-hydroxy-phenyl)-3-(4-methyl-2-pyrimidyl)- IX, 891... 

H-Benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl) phenol. See 2-(2 -Hydroxy-3,5 -di-t-amylphenyl) benzotriazole 2-(Benzotriazol-2-yl)-4,6-bis (1-methyl-1-phenylethyl) phenol 2-(2H-Benzotriazol-2-yl)-4,6-bis (1-methyl-1-phenylethyl) phenol. See2-[2-Hydroxy-3,5-di-(1,1-dimethylbenzyD phenyl]-2H-benzotriazole... 

Synonyms Methanone, [5-[[3-(2H-benzotriazol-2-yl)-2-hydroxy-5-(1,1,3,3- tetramethylbutyl) phenyl] methyl]-2-hydroxy-4-(octyloxy) phenyl) phenyl-... 

Hydroxy-3, 5 -bi s (1 -methyl -1 -pheny lethy I)] benzotriazole. See 2-[2-Hydroxy-3,5-di-(1,1-dimethylbenzyl) phenyl]-2H-benzotriazole Hydroxybis (myristato-0) aluminum. See Aluminum dimyristate Hydroxybrasilin Hydroxybrazilin. See Hematoxylin... 

Methanol, sodium salt. See Sodium methylate 2-Methanol tetrahydropyran. See Tetrahydropyran-2-methanol Methanone, [5-[[3-(2H-benzotriazol-2-yl)-2-hydroxy-5-(1,1,3,3- tetramethylbutyl) phenyl] methyl]-2-hydroxy-4-(octyloxy) phenyl) phenyl-. See [2,4 -Dihydroxy-3-(2H-benzotriazol-2-yl)-5-( 1,3,3-tetramethyl butyl)-2 -n-octoxy-5 benzoyl] diphenylmethane Methanone, (1,1 -biphenyl)-4-yl phenyl)-. Seep-Phenylbenzophenone... 

Hydrocinnamic acid 2-[2-Hydroxy-3,5-di-(1,1-dimethylbenzyl) phenyl]-2H-benzotriazole Lithium iodide Magnesium salicylate 2,2 -M ethylenebis (6-t-butyl-4-methyl phenol) 4,4 -Methylenebis (2,6-di-t-butylphenol) 2,2 -Methylenebis (4,6-di-t-butylphenyl) 2-ethylhexyl phosphite 2,2 -Methylenebis (4-ethyl-6-t-butylphenol) 2,2 -Methylenebis (4-methyl-6-t-butylphenol) monoacrylate 2,2 -Methylenebis 6-h -methylcyclohexyl)-p-cresol 2,2, 2"-Nitrilo [triethyl-tris (3,3, 5,5 -tetra-t-butyl-1,1 -biphenyl-2,2 -diyl) phosphite] ... 

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