UV 538
4-dodecyloxy-2-hydroxybenzophenone
CAS: 2985-59-3
Molecular Formula: C25H34O3
UV 538 - Names and Identifiers
| Name | 4-dodecyloxy-2-hydroxybenzophenone |
| Synonyms | UV 538 UV-1200 Ultraviolet absorbent UV-1200 2-Benzoyl-5-(dodecyloxy)phenol 2-Hydroxy-4-Dodecoxy Benzophenone 2-Hydroxy-4-dodecyclobenzophenone 4-dodecyloxy-2-hydroxybenzophenone 2-Hydroxy-4-(dodecyloxy)benzophenone 4-(DODECYLOXY)-2-HYDROXY BENZOPHENONE [4-(dodecyloxy)-2-hydroxyphenyl]phenyl-methanon [4-(dodecyloxy)-2-hydroxyphenyl]phenyl-Methanone [4-(dodecyloxy)-2-hydroxyphenyl](phenyl)methanone |
| CAS | 2985-59-3 |
| EINECS | 221-049-6 |
| InChI | InChI=1/C25H34O3/c1-2-3-4-5-6-7-8-9-10-14-19-28-22-17-18-23(24(26)20-22)25(27)21-15-12-11-13-16-21/h11-13,15-18,20,26H,2-10,14,19H2,1H3 |
UV 538 - Physico-chemical Properties
| Molecular Formula | C25H34O3 |
| Molar Mass | 382.54 |
| Density | 1.029±0.06 g/cm3(Predicted) |
| Melting Point | 49-50 °C |
| Boling Point | 506.3±35.0 °C(Predicted) |
| Flash Point | 163.6°C |
| Vapor Presure | 7.13E-11mmHg at 25°C |
| pKa | 7.58±0.35(Predicted) |
| Refractive Index | 1.534 |
UV 538 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| introduction | the chemical name of the UV-1200: 2-hydroxy -4-n-dodecanoxy benzophenone (2-HYDROXYL-4-N-DODEOXY-BENZOPHENONE), the molecular formula is C25H34O3, and the structural formula is: ultraviolet absorber UV-1200 is a UV-531 and UV-9 replacement product. The product is non-toxic, non-flammable, non-explosive, non-corrosive, and has good storage stability. It can absorb 270-340nm ultraviolet rays, prevent photoaging, cracking and brittleness of polymer materials, and greatly extend the service life of materials. Because of its excellent performance, it is widely used in polyethylene, polypropylene, acrylic, various high-grade coatings and automobile paints abroad. |
| application | ultraviolet absorbent UV-1200 is a UV-531 and UV-9 replacement product. The product is non-toxic, non-flammable, non-explosive, non-corrosive, and has good storage stability. It can absorb 270-340nm ultraviolet rays, prevent photoaging, cracking and brittleness of polymer materials, and greatly extend the service life of materials. Because of its excellent performance, it is widely used in polyethylene, polypropylene, acrylic, various high-grade coatings and automobile paints abroad. |
| preparation | raw material UV-0(214g,1.0mol),C12H25Br(261g,1.05mol),NaOH(40g,1.0mol),K2CO3(136g,1.0mol) were reacted at 120-150 ℃ for 1.5 hours in a 1000ml reaction bottle. After the reaction is over, add 500ml of water to wash away inorganic impurities, and then wash with water many times to neutral. The organic phase is further distilled or recrystallized under reduced pressure to obtain 344g of white pure product with a melting point of 51-52 ℃, which is completely consistent with the standard compound after identification. The yield was 90%. |
| synthesis method | preparation method of ultraviolet absorbent UV-1200 (chemical name: 2-hydroxy-4-nadidecylbenzophenone). It is characterized by UV-0 (chemical name: 2,4-dihydroxybenzophenone), n-dodecyl halogenated alkane, and inorganic base. Under the condition of no organic solvent, the UV absorbent UV-1200 is prepared in a high yield. Compared with other methods reported at home and abroad, this method has the obvious advantage of avoiding the use of organic solvents in the reaction and realizing the greening of the reaction process. The method has green process, simple operation, low cost and high yield, and is suitable for large-scale industrial production. |
Last Update：2024-04-09 21:04:16
