UV-329

UV-329 Basic information
Characterization Physical Properties Applications Features/benefits Product forms Guidelines for use Handling & Safety
Product Name:UV-329
Synonyms:LABOTEST-BB LT00053579;EUSORB 323;2-(2'-HYDROXY-5'-TERT-OCTYLLPHENYL)BENZOTRIAZOLE;2-(2'-HYDROXY-5'-TERT-OCTYL PHENYL) BENZOTRIAZOLE;2-(2h-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbu;2-(2'-Hydroxy-5'-octylphenyl)benzotriazole;2-(2’-hydroxy-5’-(1-1-3-3-tetramethylbutyl)phenyl)benzotriazole;Tinuvin 329 Ciba,Cytec Cyasorb 5411,Aceto Eusorb 323
CAS:3147-75-9
MF:C20H25N3O
MW:323.43
EINECS:221-573-5
Product Categories:Intermediates of Dyes and Pigments;Industrial/Fine Chemicals;Phenoles and thiophenoles
Mol File:3147-75-9.mol
UV-329 Structure
UV-329 Chemical Properties
Melting point 106-108 °C(lit.)
Boiling point 471.8±55.0 °C(Predicted)
density 1.10±0.1 g/cm3(Predicted)
vapor pressure 0Pa at 20℃
storage temp. 2-8°C
solubility Chloroform (Slightly), Methanol (Slightly)
form Solid
pka8.07±0.45(Predicted)
color White to Off-White
Water Solubility 2μg/L at 20℃
InChIKeyIYAZLDLPUNDVAG-UHFFFAOYSA-N
LogP7.290 (est)
CAS DataBase Reference3147-75-9(CAS DataBase Reference)
EPA Substance Registry SystemOctrizole (3147-75-9)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26-37/39
WGK Germany 1
HS Code 2933997500
MSDS Information
ProviderLanguage
SigmaAldrich English
UV-329 Usage And Synthesis
CharacterizationUV-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.
Physical PropertiesUV-329
ApplicationsUV-329 is an effective light stabilizer for a variety of plastics and other organic substrates.
Features/benefitsUV-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.
Product formsUV-329    Slightly yellow powder
UV-329 FL     Slightly yellow, rodlike granules
Guidelines for useThe 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.
Handling & SafetyUV-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.
DescriptionThe ultraviolet absorber UV-329 is a highly effective anti-aging additive with excellent performance. It is soluble in benzene, styrene Chemicalbook, 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.
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UsesUltraviolet screen.
UsesUV absorber
DefinitionAn UV light absorber.
Flammability and ExplosibilityNotclassified
UV-329 Preparation Products And Raw materials
Raw materials2-[(2-Nitrophenyl)azo]-4-(1,1,3,3-tetramethylbutyl)phenol
Preparation ProductsBisoctrizole-->UV absorber-928
4-Dodecyloxy-2-hydroxybenzophenone 1-(PHENOXYMETHYL)-1H-BENZOTRIAZOLE UV-320 UV Absorber 326 Ethyl 4-[[(methylphenylamino)methylene]amino]benzoate 2-(2'-Hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole 2-(2H-Benzothiazol-2-yl)-6-(dodecyl)-4-methylphenol 3-METHOXYPHENYLBENZOATE 2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol UV Absorber 234 2,4-Di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate Polyoxyethylene octylphenol ether UV-329 Ultraviolet absorbent Octylphenol Benazol P Octyl-phenolic tackifying resin 2-(2-HYDROXY-5-TERT-OCTYLPHENYL)BENZOTRIAZOLE

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