Basic information Characterization Physical Properties Applications Features/benefits Guidelines for use Handling & Safety Safety Supplier Related
ChemicalBook >  Product Catalog >  Catalyst and Auxiliary >  UV absorbers >  2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol

2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol

Basic information Characterization Physical Properties Applications Features/benefits Guidelines for use Handling & Safety Safety Supplier Related

2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol Basic information

Product Name:
2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol
Synonyms:
  • 2-(2h-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)-pheno
  • BLS234
  • 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol UV-234
  • 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol powder
  • Eusorb UV-900
  • 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol
  • UV Absorber UV-234
  • Absorber UV-234
CAS:
70321-86-7
MF:
C30H29N3O
MW:
447.57
EINECS:
274-570-6
Product Categories:
  • Polymer Additives
  • Polymer Science
  • Polymer Additives
  • Polymer Science
  • Stabilizers
  • UV
Mol File:
70321-86-7.mol
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2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol Chemical Properties

Melting point:
139-143 °C(lit.)
Boiling point:
589.3±60.0 °C(Predicted)
Density 
1.12±0.1 g/cm3(Predicted)
Flash point:
383 °F(lit.)
storage temp. 
Refrigerator
solubility 
H2O: <0.04 ppm at 20 °C, insoluble
form 
powder
pka
9?+-.0.10(Predicted)
color 
White to Off-White
Odor
fresh fruity raspberry rose
Water Solubility 
insoluble, <0.04 ppm at 20 ºC
InChIKey
OLFNXLXEGXRUOI-UHFFFAOYSA-N
CAS DataBase Reference
70321-86-7(CAS DataBase Reference)
EPA Substance Registry System
Phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)- (70321-86-7)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
-
HS Code 
29339900

MSDS

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2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol Usage And Synthesis

Characterization

UV Absorber 234 (2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol) is a high molecular weight ultraviolet light absorber (UVA) of the hydroxyphenyl benzotriazole class, imparting excellent light stability to a variety of polymers.

Physical Properties

Applications

UV Absorber 234 (2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol) is highly effective for polymers processed at high temperatures such as polycarbonates, polyalkylene terephthalates, polyacetals, polyamides, polyphenylene sulfide, polyphenylene oxide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers, as well as for polyvinylchloride, styrene homo- and copolymers. Applications include molded articles, films, sheets and fibers.

Features/benefits

UV Absorber 234 features low volatility, exceptional light absorbing characteristics and good compatibility in various substrates. This makes the product particularly suitable for applications characterized by high surface area, such as films and fibers.

Guidelines for use

Use levels of UV Absorber 234 (2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol) range between 0.15 and 0.60 %, depending on substrate and performance requirements of the final application. UV Absorber 234can be used alone or in combination with other functional additives such as antioxidants (hindered phenols, phosphites) and HALS light stabilizers, where often a synergistic performance is observed. Extensive performance data of UV Absorber 234 alone or in combination with other additives are available in many of the substrates listed above.

Handling & Safety

UV Absorber 234 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.

Uses

Benzotriazole BT is a low volatile benzotriazole UV light absorber and stabilizer.

Uses

Low volatile benzotriazole UV light absorber and stabilizer.
Imparts outstanding light stability for polymers processed at high temperatures such as polycarbonate, polyesters, polyacetal, polyamides, polyphenylene sulfide, polyphenylene oxide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers also highly effective for polyvinylchloride, styrene homo- and copolymers.

Flammability and Explosibility

Not classified

2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenolSupplier

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