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UV absorber-928

UV absorber-928 Structure
CAS No.
73936-91-1
Chemical Name:
UV absorber-928
Synonyms
UV-928;TINUVIN 928;LOTSORB UV 928;UV ABSORBER-928;Absorber UV-928;Sinosorb? UV-928;Uv Stabilizer 928;UV Absorbers YD UV-928;UV ABSORBER TRUELICHT UV 928;Light Stabilizer UV-Absorber RIASORB UV928/928FF
CBNumber:
CB6291367
Molecular Formula:
C29H35N3O
Molecular Weight:
441.61
MOL File:
73936-91-1.mol
MSDS File:
SDS
Modify Date:
2024/4/28 19:50:54
Request For Quotation

UV absorber-928 Properties

Melting point 112 °C
Boiling point 555.5±60.0 °C(Predicted)
Density 1.07
solubility soluble in Toluene
form powder to crystal
pka 8.05±0.50(Predicted)
color White to Orange to Green
InChI InChI=1S/C29H35N3O/c1-27(2,3)19-28(4,5)21-17-22(29(6,7)20-13-9-8-10-14-20)26(33)25(18-21)32-30-23-15-11-12-16-24(23)31-32/h8-18,33H,19H2,1-7H3
InChIKey UZUNCLSDTUBVCN-UHFFFAOYSA-N
SMILES C1(O)=C(C(C)(C2=CC=CC=C2)C)C=C(C(C)(C)CC(C)(C)C)C=C1N1N=C2C=CC=CC2=N1
EPA Substance Registry System Phenol, 2-(2H-benzotriazol-2-yl)-6-(1-methyl-1-phenylethyl)-4-(1,1,3,3-tetramethylbutyl)- (73936-91-1)

SAFETY

Risk and Safety Statements

HS Code  2933.99.8290

UV absorber-928 price More Price(2)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemicals (India) B5976 2-(2H-Benzo[d][1,2,3]triazol-2-yl)-6-(2-phenylpropan-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol 73936-91-1 5G ₹2500 2022-05-26 Buy
TCI Chemicals (India) B5976 2-(2H-Benzo[d][1,2,3]triazol-2-yl)-6-(2-phenylpropan-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol 73936-91-1 25G ₹7300 2022-05-26 Buy
Product number Packaging Price Buy
B5976 5G ₹2500 Buy
B5976 25G ₹7300 Buy

UV absorber-928 Chemical Properties,Uses,Production

Chemical Properties

light yellow crystalline powder

Application

UV absorber-928(Tinuvin 928) is a UV absorber of the hydroxyphenyl benzotriazole class developed specially for high performance coating applications. Its characteristic broadband absorption provides efficient protection to coatings and light sensitive substrates. Its excellent solubility and high thermal and environmental permanence makes it particularly suitable for coatings exposed to high temperature curing processes, such as powder and coil coatings, or high environmental stress. Tinuvin 928 is recommended for applications such as:
automotive coatings
powder and coil coatings
hot melt adhesives
exterior construction coatings (roofing, etc.)
construction adhesives and sealants

Application

UV-928 has broad absorption properties which can effectively protect coating and other photosensitive materials.The product has high solubility, high temperature resistant and good environmental durability and so on..It is suitable for high performance coatings, especially suitable for powder coating and industrial and automotive coatings. UV-928 can be enhanced when used in combination with a HALS stabilizer such as UV-292 or UV-123.

Synthesis

73936-91-1.jpg
In a dry argon atmosphere 0.150 g of oxime 5, 0.070 g of 1,2-phenylene diamine 1 and 0.150 ml triethyl-borate are dissolved in 4 ml dry THF and heated for 24 h at 60°C. After a TLC shows consumption of starting oxime the mixture is evaporated to dryness and the resulting residue purified by column chromatography (eluent: hexane - ethyl acetate: 10-1 vol/vol) to give 0.171 g (92 %) of the diazo-amine intermediate 6. Replacing the B(OEt)3 by 2.5 g of basic AI2O3 and the THF by 2 ml of xylene and heating this mixture to 140°C for 48 h gives after the usual work-up 0.089 mg of diazo compound 6 and 0.300 g of starting oxime 5. According the procedure given for the preparation of compound 4 in example 1, triazole 7 is obtained from 0.007 g (0.016 mmol) of intermediate amine 6 and 0.020 g (0.122 mmol) CuSO4 in 100% (0.007 g). In this comparative example, 7.73 equivalents of copper salt are used.

UV absorber-928 Preparation Products And Raw materials

Raw materials

UV-329 2-Phenyl-1-propene

Preparation Products

UV absorber-928 Suppliers

Global( 135)Suppliers
Supplier Tel Country ProdList Advantage Inquiry
TCI Chemicals (India) Pvt. Ltd. 1800 425 7889 New Delhi, India 6778 58 Inquiry
QINGDAO JADE NEW MATERIAL TECNOLOGY CO.,LTD +86 13658692156 China 223 58 Inquiry
Qingdao Truelight functional Material Technology Co., Ltd. +86-13573844393 China 221 58 Inquiry
Yujiang Chemical (Shandong) Co.,Ltd. +86-17736087130 +86-18633844644 China 984 58 Inquiry
Hebei Longbang Technology Co., LTD +8618633929156 China 942 58 Inquiry
Shandong Juchuang Chemical Co., LTD +undefined15030412209 China 387 58 Inquiry
Hebei Saisier Technology Co., LTD +86-18400010335 +86-18034520335 China 1015 58 Inquiry
HebeiShuoshengImportandExportco.,Ltd +86-18532138899 +86-18532138899 China 931 58 Inquiry
Henan Tianfu Chemical Co.,Ltd. +86-0371-55170693 +86-19937530512 China 21663 55 Inquiry
career henan chemical co +86-0371-86658258 +8613203830695 China 29899 58 Inquiry
Supplier Advantage
TCI Chemicals (India) Pvt. Ltd. 58
QINGDAO JADE NEW MATERIAL TECNOLOGY CO.,LTD 58
Qingdao Truelight functional Material Technology Co., Ltd. 58
Yujiang Chemical (Shandong) Co.,Ltd. 58
Hebei Longbang Technology Co., LTD 58
Shandong Juchuang Chemical Co., LTD 58
Hebei Saisier Technology Co., LTD 58
HebeiShuoshengImportandExportco.,Ltd 58
Henan Tianfu Chemical Co.,Ltd. 55
career henan chemical co 58

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  • Applications of UV absorber-928
  • UV absorber-928(C29H35N3O) is a hydroxyphenyl benzotriazole UV absorber specially designed for high performance coating applic....
  • Dec 3，2019

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2-(2H-benzotriazol-2-yl)-6-(1-methyl-1-phenylethy)-4-(1,1,3,3-tetramethylbutyl)-Phenol TINUVIN 928 2-[2-HYDROXY-3-DIMETHYLBENZYLPHENYL-5-(1,1,3,3-TETRAMETHYLBUTYL)]-2H-BENZOTRIAZOLE 2-6(2H-Benzotriazol-2-yl)-6-(1,1,3,3-tetramethylbutyl)Phenol 2-(2H-BENZOTRIAZOL-2-YL)-6-(1-METHYL-1-PHENYLETHYL)-4-(1,1,3,3-TETRAMETHYLBUTYL)PHENOL UV ABSORBER-928 Phenol, 2-(2H-benzotriazol-2-yl)-6-(1-methyl-1-phenylethyl)-4-(1,1,3,3-tetramethylbutyl)- 2-[2-Hydroxy-3-dimethylbenzylphenyl-5-(1,1,3,3-tetramethylbutyl)]-2H-benzotriazol UV-928 LOTSORB UV 928 2-(2H-Benzo[d][1,2,3]triazol-2-yl)-6-(2-phenylpropan-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol Absorber UV-928 2-(benzotriazol-2-yl)-6-(2-phenylpropan-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol 2-(2H-Benzotriazol-2-yl)-6-(1-methyl-1-phenylethyl)-4-(1,1,3,3-tetramethylbutyl)phenol ISO 9001：2015 REACH UV ABSORBER TRUELICHT UV 928 Light Stabilizer UV-Absorber RIASORB UV928/928FF Sinosorb? UV-928 UV Absorbers YD UV-928 Uv Stabilizer 928 73936-91-1 C29H35N3O