UV-329
- Iupac Name:2-(benzotriazol-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol
- CAS No.: 3147-75-9
- Molecular Weight:323.432
- Modify Date.: 2023-03-10 11:37
- Introduction:
An UV light absorber.
DryPowder; OtherSolid; PelletsLargeCrystals
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1. Names and Identifiers
- 1.1 Name
- UV-329
- 1.2 Synonyms
2-(2H-Benzo[d][1,2,3]triazol-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol 2-(2H-BENZOTRIAZOL-2-YL)-4-(1,1,3,3-TETRAMETHYLBUTYL)PHENOL 2-(2H-Benzotriazol-2-yl)-4-(2,4,4-trimethyl-2-pentanyl)phenol 2-(2H-Benzotriazol-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol 2-(2H-Benzotriazol-2-yl)-4-(2-methyl-2-heptanyl)phenol 2-(2'-HYDROXY-5'-TERT-OCTYL PHENYL) BENZOTRIAZOLE 2-(2'-HYDROXY-5'-TERT-OCTYLLPHENYL)BENZOTRIAZOLE 2-(2-HYDROXY-5-TERT-OCTYLPHENYL)BENZOTRIAZOLE 2-Benzotriazol-2-yl-4-(1,1,3,3-tetramethyl-butyl)-phenol Benzotriazole UV 329 Cyasorb UV 5411 EINECS 221-573-5 EUSORB 323 LABOTEST-BB LT00053579 MFCD00013338 OCTRIZOLE Phenol, 2-(2H-1,2,3-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)- Phenol, 2-(2H-1,2,3-benzotriazol-2-yl)-4-(1,1-dimethylhexyl)- ThasorbUv329 TINUVIN 329 UV ABSORBER 329 UV Absorber UV-329 UV ABSORBERS 5411
- 1.3 CAS No.
- 3147-75-9
- 1.4 CID
- 62485
- 1.5 EINECS(EC#)
- 221-573-5
- 1.6 Molecular Formula
- C20H25N3O (isomer)
- 1.7 Inchi
- InChI=1S/C20H25N3O/c1-19(2,3)13-20(4,5)14-10-11-18(24)17(12-14)23-21-15-8-6-7-9-16(15)22-23/h6-12,24H,13H2,1-5H3
- 1.8 InChkey
- IYAZLDLPUNDVAG-UHFFFAOYSA-N
- 1.9 Canonical Smiles
- CC(C)(C)CC(C)(C)C1=CC(=C(C=C1)O)N2N=C3C=CC=CC3=N2
- 1.10 Isomers Smiles
- CC(C)(C)CC(C)(C)C1=CC(=C(C=C1)O)N2N=C3C=CC=CC3=N2
2. Properties
- 2.1 Density
- 1.1
- 2.1 Melting point
- 101-108℃
- 2.1 Boiling point
- 471.8°C at 760 mmHg
- 2.1 Refractive index
- 1.584
- 2.1 Flash Point
- 239.2°C
- 2.1 Precise Quality
- 323.199768
- 2.1 PSA
- 50.94000
- 2.1 logP
- 5.02910
- 2.1 Appearance
- DryPowder; OtherSolid; PelletsLargeCrystals
- 2.2 pKa
- 8.07±0.45(Predicted)
- 2.3 StorageTemp
- Sealed in dry,2-8°C
3. Use and Manufacturing
- 3.1 Definition
- An UV light absorber. UV-329Supplier
- 3.2 Usage
- Ultraviolet screen.
4. Safety and Handling
- 4.1 Symbol
- GHS07
- 4.1 Hazard Codes
- Xi;
- 4.1 Signal Word
- Warning
- 4.1 Risk Statements
- R36/37/38
- 4.1 Safety Statements
- S26;S37/39
- 4.1 Hazard Declaration
- H315-H319-H335
- 4.1 RIDADR
- NONH for all modes of transport
- 4.1 Caution Statement
- P305 + P351 + P338
- 4.1 WGK Germany
- 1
5. MSDS
2.Hazard identification
2.1 Classification of the substance or mixture
Not classified.
2.2 GHS label elements, including precautionary statements
Pictogram(s) | No symbol. |
Signal word | No signal word. |
Hazard statement(s) | none |
Precautionary statement(s) | |
Prevention | none |
Response | none |
Storage | none |
Disposal | none |
2.3 Other hazards which do not result in classification
none
6. Synthesis Route
3147-75-9Total: 1 Synthesis Route
8. Other Information
- 8.0 Production
- 500,000 - 1,000,000 lb
- 8.1 Manufacturing Info
- Plastic material and resin manufacturing|Phenol, 2-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)-: ACTIVE
- 8.2 Use Classification
- Cosmetics -> Uv absorber
- 8.3 参考用量
- PC(0.1-1.0%),PVC(0.25-1.0%),ABS(0.25-0.75%),MMA(0.1-1.0%)
- 8.4 Characterization
- UV-329 is an ultraviolet light absorber (UVA) of the hydroxyphenyl benzotriazole class, which is used as a light stabilizer for plastics and other organic substrates.
- 8.5 Physical Properties
-

- 8.6 Applications
- UV-329 is an effective light stabilizer for a variety of plastics and other organic substrates.
- 8.7 Features/benefits
- UV-329 protects polymers from UV radiation, helping to preserve the original appearance and physical integrity of molded articles, films, sheets, and fibers during outdoor weathering.
- 8.8 Product forms
- UV-329 Slightly yellow powder
UV-329 FL Slightly yellow, rodlike granules
- 8.9 Guidelines for use
- The use levels of UV-329 range between 0.1 and 1.0 %, depending on substrate and performance requirements of the final application. The product can be used alone or in combination with other additives such as light stabilizers (hindered amines), antioxidants (hindered phenols, phosphites, thiosynergists, hydroxylamines), and other functional stabilizers and additives. The use of UV-329 in combination with hindered amine light stabilizers is particularly noteworthy in that a synergistic performance is often observed. Performance data of UV-329 alone or in combination with other additives are available in selected substrates.
- 8.10 Handling & Safety
- UV-329 exhibits a very low order of oral toxicity and does not present any abnormal problems in its handling or general use.
Detailed information on handling and any precautions to be observed in the use of the product(s) described in this leaflet can be found in our relevant health and safety information sheet.
- 8.11 Description
- The ultraviolet absorber UV-329 is a highly effective anti-aging additive with excellent performance. It is soluble in benzene, styrene , dichloromethane and cyclohexane, slightly soluble in alcohols, insoluble in water; it can effectively absorb 270- 380 nanometer ultraviolet light; non-flammable, non-explosive, non-toxic, safe and harmless to use.
9. Computational chemical data
- Molecular Weight: 323.432g/mol
- Molecular Formula: C20H25N3O
- Compound Is Canonicalized: True
- XLogP3-AA: null
- Exact Mass: 323.199762429
- Monoisotopic Mass: 323.199762429
- Complexity: 417
- Rotatable Bond Count: 4
- Hydrogen Bond Donor Count: 1
- Hydrogen Bond Acceptor Count: 3
- Topological Polar Surface Area: 50.9
- Heavy Atom Count: 24
- Defined Atom Stereocenter Count: 0
- Undefined Atom Stereocenter Count: 0
- Defined Bond Stereocenter Count: 0
- Undefined Bond Stereocenter Count: 0
- Isotope Atom Count: 0
- Covalently-Bonded Unit Count: 1
- CACTVS Substructure Key Fingerprint: AAADceB7IAAAAAAAAAAAAAAAAAAAAWAAAAAwYAAAAAAAAFgB9AAAHgAICAAADgyBngAyxrAAAgCiAyRiQACSBAQgMgAYmCA3fJgKZqKSkZOAcABkyBEI2AeQwPAPoAAAQAAAECBAAACAAAAgQAAAAAAAAA==
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UV-329
- Purity:99%Packing: 200kg/bag FOB
- Price: 2025 USD/kilogram
- Time: 2023/05/31
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11. Realated Product Infomation