Chemical Name: UV Absorber/ UV-P / 2-(2H-Benzotriazol-2-yl)-p-cresol
CAS No.: 2440-22-4
Molecular Fomula: C13H11N3O
Molecular weight: 225.25
Appearance: white to light yellow crystal powder
Content: ≥ 99%
UV absorber CAS 2440-22-4
Description
UV Absorber / UV-P Quick Details
Chemical Name: UV Absorber/ UV-P / 2-(2H-Benzotriazol-2-yl)-p-cresol
CAS No.: 2440-22-4
Molecular Fomula: C13H11N3O
Molecular weight: 225.25
Chemical Structure:
Appearance: white to light yellow crystal powder
Content: ≥ 99%
| Wavelength nm | Light transmittance % |
| 440 | ≥ 97 |
| 500 | ≥ 98 |
Toxicity: low toxicity, Rattus norvegicus oral LD50 >5g/Kg weight.
Use: This product is suitable in polyester, epoxy cellulose acetate, Polyvinyl chloride, organic glass, and others. The Max absorption wavelength range is 270-380nm.
General dosage: thin products: 0.1-0.5%, thick products: 0.05-0.2%.
Solubility: 25°C unit:g/100mLsolvent
| Solvent | Solubility | Solvent | Solubility |
| Acetone | 2.5 | Dioctyl phthalate | 2.5 |
| Alcohol | 0.3 | Di-n-octyl sebacate | 2.4 |
| Methyl alcohol | 0.2 | An Ethanol | 3.9 |
| Ethyl acetate | 3.5 | Styrene | 7.2 |
| n-Butyl acetate | 3.0 | Tricresyl phosphate | 3.3 |
| Benzene | 6.9 | Solvent gas | 0.9 |
| Toluene | 6.0 | Petroleum solvent | 1.5 |
| Cyclohexane | 0.7 | Water | 0 |
CAS 2440-22-4 (UV Absorber / UV-P) Typical Properties
| Item | Standard | |
| Appearance | Light yellow crystals | |
| Melting point℃ | 128.0~132.0 | |
| Ash%≦ | 0.1 | |
| Loss on drying%≦ | 0.5 | |
| HPLC %≧ | 99.0 | |
| Transmittance %≧ | 440nm | 97.0 |
| 500nm | 98.0 | |
CAS 2440-22-4 (UV Absorber / UV-P) Usage
UV Absorber / UV-P is used as a UV absorber for plastics, fibers, and coatings such as polyester, polystyrene, acrylic, and polyvinyl chloride.
CAS 2440-22-4 (UV Absorber / UV-P) Packaging and Shipping
Packing: 25kg/carton
Delivery: Delivery within 3-5working days
CAS 2440-22-4 (UV Absorber / UV-P) Storage
Avoiding light and drying.