UV-320
- Product Name
- UV-320
- CAS No.
- 3846-71-7
- Chemical Name
- UV-320
- Synonyms
- 2-benzotriazol-2-yl-4,6-di-tert-butylphenol;4,6-Di-tert-butyl-2-(2H-benzotriazole-2-yl)phenol;HDBB;Ultraviolet absorbent UV-320;2-(2H-Benzo[d][1,2,3]triazol-2-yl)-4,6-di-tert-butylphenol;2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylethyl)-Phenol;Phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylethyl)-;UV-320;TINUVIN 320;JADEADD UV320
- CBNumber
- CB4154994
- Molecular Formula
- C20H25N3O
- Formula Weight
- 323.43
- MOL File
- 3846-71-7.mol
UV-320 Property
- Melting point:
- 152-154°C
- Boiling point:
- 444.0±55.0 °C(Predicted)
- Density
- 1.10±0.1 g/cm3(Predicted)
- Flash point:
- 215°C
- storage temp.
- 2-8°C
- solubility
- Chloroform (Slightly), Methanol (Slightly)
- pka
- 9.41±0.48(Predicted)
- form
- Solid
- color
- White to Off-White
- InChI
- InChI=1S/C20H25N3O/c1-19(2,3)13-11-14(20(4,5)6)18(24)17(12-13)23-21-15-9-7-8-10-16(15)22-23/h7-12,24H,1-6H3
- InChIKey
- LHPPDQUVECZQSW-UHFFFAOYSA-N
- SMILES
- C1(O)=C(C(C)(C)C)C=C(C(C)(C)C)C=C1N1N=C2C=CC=CC2=N1
- CAS DataBase Reference
- 3846-71-7(CAS DataBase Reference)
- EPA Substance Registry System
- Phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylethyl)- (3846-71-7)
Safety
- Risk Statements
- 48/22-52/53
- Safety Statements
- 26-36/37/39
- RIDADR
- 3077
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H351Suspected of causing cancer
H373May cause damage to organs through prolonged or repeated exposure
H412Harmful to aquatic life with long lasting effects
- Precautionary statements
-
P201Obtain special instructions before use.
P202Do not handle until all safety precautions have been read and understood.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P273Avoid release to the environment.
P281Use personal protective equipment as required.
P308+P313IF exposed or concerned: Get medical advice/attention.
P314Get medical advice/attention if you feel unwell.
P405Store locked up.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- U850210
- Product name
- UV-320
- Packaging
- 25g
- Price
- $105
- Updated
- 2021/12/16
- Product number
- U850210
- Product name
- UV-320
- Packaging
- 50g
- Price
- $185
- Updated
- 2021/12/16
- Product number
- FB140259
- Product name
- 2-(2H-Benzo[d][1,2,3]triazol-2-yl)-4,6-di-tert-butylphenol
- Packaging
- 50g
- Price
- $200
- Updated
- 2021/12/16
- Product number
- CHM0007185
- Product name
- 2-(2'-HYDROXY-3',5'-DI-TERT-BUTYLPHENYL)BENZOTRIAZOLE
- Purity
- 95.00%
- Packaging
- 100G
- Price
- $2465.53
- Updated
- 2021/12/16
- Product number
- FB140259
- Product name
- 2-(2H-Benzo[d][1,2,3]triazol-2-yl)-4,6-di-tert-butylphenol
- Packaging
- 25g
- Price
- $150
- Updated
- 2021/12/16
UV-320 Chemical Properties,Usage,Production
Uses
UV-320 is a benzotriazole UV stabilizer, which is used to increase product stability and to prevent discolouration in various consumer and industrial goods such as plastics. Benzotriazole UV stabilizers are a pollutant for the aquatic environment and have been implicated as a potential stable and toxic ligands for aryl hydrocarbon receptor in human.
Synthesis
84755-44-2
3846-71-7
The general procedure for the synthesis of 2-(2H-3,5-di-tert-butyl-2-hydroxyphenyl)benzotriazole from 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)benzotriazole N-oxide is as follows: Example 3: 10 g (0.03 mol) of 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)benzotriazole-N-oxide, 100 mg of palladium-carbon catalyst, 100 ml of solvent mixture of toluene and water (4:1 ratio by volume), and 3 g of 50% dimethylamine solution were added to a 500 ml autoclave equipped with a stirrer. After replacing the air in the autoclave with hydrogen, the hydrogen pressure was set to 10 kg/cm2. The temperature was raised to 50 °C with stirring, and the reaction was maintained at this temperature until no more hydrogen was absorbed by the mixture. After completion of the reaction, the autoclave was cooled and the catalyst was removed by filtration. A portion of the filtrate was quantitatively analyzed by GC and the yield of 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)benzotriazole was measured to be 85.6%. After removing the solvent from the filtrate by distillation, the residual solid was crystallized with ethanol and subsequently washed with ethanol to give 7.1 g of 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)benzotriazole (71% yield; melting point 152-155 °C).
References
[1] Tetrahedron Letters, 1997, vol. 38, # 48, p. 8303 - 8306
[2] Tetrahedron Letters, 1997, vol. 38, # 5, p. 845 - 848
[3] Journal of Organic Chemistry, 1995, vol. 60, p. 5683 - 5685
[4] Australian Journal of Chemistry, 1982, vol. 35, # 10, p. 2089 - 2093
[5] Patent: US5104992, 1992, A
UV-320 Preparation Products And Raw materials
Raw materials
Preparation Products
UV-320 Suppliers
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View Lastest Price from UV-320 manufacturers
- Product
- UV Absorber UV-320 3846-71-7
- Price
- US $79.00-38.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 20ton
- Release date
- 2024-12-04
- Product
- UV-320 3846-71-7
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 500000kg
- Release date
- 2024-11-01
- Product
- CHLUMIUV? UV-320 3846-71-7
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 20 tons
- Release date
- 2025-04-09