- Product Name
- CasNo
- MF
- MW
- Content
- Appearance
- Packing
- Apply
- UV Absorber 329
- 3147-75-9
- C20H25N3O
- 323.438
- Slightly yellowish powder
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|
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. |
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Applications |
UV-329 is an effective light stabilizer for a variety of plastics and other organic substrates. |
|
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. |
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Product forms |
UV-329??? Slightly yellow powder UV-329 FL???? Slightly yellow, rodlike granules |
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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. |
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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. |
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Definition |
An UV light absorber. |
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Flammability and Explosibility |
Notclassified |
InChI:InChI=1/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
Disclosed is a blue light absorbing comp...
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2-(2'-hydroxy-5'-tert-octylphenyl)nitrodiazobenzene
Cyasorb UV 5411
| Conditions | Yield |
|---|---|
|
With
methanol; Aminoiminomethanesulfinic acid; sodium hydroxide;
In
toluene;
at 50 - 80 ℃;
for 0.5h;
Reagent/catalyst;
Solvent;
Temperature;
|
96.4% |
|
With
sodium hydroxide; zinc;
In
water; Petroleum ether;
at 50 ℃;
for 5h;
|
|
|
With
sodium hydroxide; zinc;
In
water; Petroleum ether;
at 50 ℃;
for 5h;
|
C20H25N3O2
Cyasorb UV 5411
| Conditions | Yield |
|---|---|
|
With
hydrogenchloride;
In
water; toluene;
at 70 ℃;
for 2h;
Concentration;
Temperature;
Reagent/catalyst;
|
89.5% |
|
With
hydrogenchloride; zinc;
In
toluene;
Reflux;
|
88.2% |
2-(2-Nitro-phenylazo)-4-(1,1,3,3-tetramethyl-butyl)-phenol
2-Nitro-2'-hydroxy-3',5'-di-tert-pentyl-azobenzene
9-fluorenone
2-nitro-2'-hydroxy-5'-tert-butylazobenzene
2-(2-Hydroxyphenyl)-2H-benzotriazole
6-allyl-2-(2H-1,2,3-benzotriazol-2-yl)-4-(t-octyl)phenol
2,2'-dihydroxy-3-(2H-benzotriazol-2-yl)-3'-(4,6-diphenyl-s-triazin-2-yl)-5-tert-octyl-6'-hexyloxy-diphenylmethane
trifluoromethanesulfonic acid 2-benzotriazol-2-yl-4-(1,1,3,3-tetramethylbutyl)phenyl ester