| Identification | Back Directory | [Name]
Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide | [CAS]
162881-26-7 | [Synonyms]
BAPO
UV819
PI-819
APi-819
Phenylbis
JADEADD PI
HRcure-819
PHine oxide
OMNIRAD 380
OMNIRAD 819
Phenylbis(2
IRGACURE 819
JADEWIN PI 819
IRGACURE(R) 819
photoinitiator908
Lencolo 5020（819）
Photoinitiator 819
former IRGACURE 819
bis(2,4,6-trimethyL
Photoinitiator XBPO
246-trimetyl benzoyl
photo sensitizer 819
Uv Photoinitiator 819
Photoinitiator XBPO 819
Ethyl isovalerate 108-64-5
Hot sale Photoinitiator 819
UV 819 Photoinitiator 819 BAPO
Efficient Photoinitiator Xbpo 819
6-trimethylbenzoyl)phosphine oxide
Phenylbis(2,4,6-trimethylbenzoyl)p
(Phenylphosphoryl)bis(mesitylmethanone)
Sinocure? 819 / irgacure 819 / Omnirad 819
Bis(2,4,6-trimethylbenzoyl) Phenyl Phosphinate
BIS(2,4,6-TRIMETHYLBENZOYL)PHENYLPHOSPHINE OXIDE
PHENYLBIS(2,4,6-TRIMETHYLBENZOYL)PHOSPHINE OXIDE
Phenylbis(2,4,6-trimethylbenzoyl)phosphineOxide>
2-Benzyl-2dimethylamino-1-(4-morpholinphenyl)butan
Phosphine oxide, phenylbis(2,4,6-trimethylbenzoyl)-
Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide ,99%
Sinocure? 819 DW / Irgacure 819 DW / Omnirad 819 DW CAS
Phenylbis(2,4,6-triMethylbenzoyl)phosphine oxide 97%, powder
Photoinitiator 819 CAS No.?162881-26-7?Factory Low Price High Quality
Photoinitiator 819 phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide
Methanone, 1,1'-(phenylphosphinylidene)bis[1-( 2,4,6-trimethylphenyl)- | [EINECS(EC#)]
423-340-5 | [Molecular Formula]
C26H27O3P | [MDL Number]
MFCD01863675 | [MOL File]
162881-26-7.mol | [Molecular Weight]
418.46 |
| Chemical Properties | Back Directory | [Melting point ]
131-135 °C(lit.)
| [Boiling point ]
590.0±60.0 °C(Predicted) | [density ]
1.17±0.1 g/cm3(Predicted) | [vapor pressure ]
0Pa at 20℃ | [storage temp. ]
Sealed in dry,Room Temperature | [solubility ]
acetone, acetonitrile, toluene, and hexanedioldiacrylate: soluble
| [form ]
powder
| [color ]
Pale Yellow to Yellow | [Water Solubility ]
100μg/L at 20-21℃ | [λmax]
366nm(MeOH)(lit.) | [Cosmetics Ingredients Functions]
LIGHT STABILIZER | [InChI]
InChI=1S/C26H27O3P/c1-16-12-18(3)23(19(4)13-16)25(27)30(29,22-10-8-7-9-11-22)26(28)24-20(5)14-17(2)15-21(24)6/h7-15H,1-6H3 | [InChIKey]
GUCYFKSBFREPBC-UHFFFAOYSA-N | [SMILES]
P(C1C=CC=CC=1)(=O)(C(C1C(=CC(C)=CC=1C)C)=O)C(C1C(=CC(C)=CC=1C)C)=O | [LogP]
5.77-5.8 at 22℃ | [CAS DataBase Reference]
162881-26-7 | [EPA Substance Registry System]
Phosphine oxide, phenylbis(2,4,6-trimethylbenzoyl)- (162881-26-7) |
| Hazard Information | Back Directory | [Description]
Phenylbis(2,4,6-trimethylbenzoyl) phosphine oxide can be used as a photoinitiator for: Radical polymerization of dental resins. It enhances the polymerization rate and conversion compared to other initiators. It is a polymer-based ceramic material modified with divinylbenzene for the preparation of high-temperature sensor applications.
| [Chemical Properties]
Photoinitiator 819 has similar molecular structure with TPO and belongs to acylphosphine oxide class of cleavage type radical photoinitiators. The photolysis products are: two trimethylbenzoyl and one phenylphosphinyl radicals, all of which have high initiating activity, so they have higher photoinitiating activity than TPO. | [Uses]
3-Bromo-1-(3-chloro-2-pyridinyl)-1H-pyrazole-5-carboxylic acid is a useful building block and has been used in the synthesis of the pesticide Cyclaniliprole. | [Uses]
Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide is a useful research chemical compound. | [Application]
Photoinitiator 819 (HRcure-819) can also be used in colored UV-curable plastic coatings. UV coatings have been widely used on plastic shells of various electronic and household appliances due to their excellent performance and efficient production. However, the deep curing of UV coatings after coloring is not good, resulting in poor film adhesion and poor dispersion and arrangement of pigments by UV resins, which seriously affect the appearance of the coatings. Therefore, the traditional construction process is to paint solvent-based colored primer first; after baking, apply UV varnish to improve the physical properties of the film surface.
| [Definition]
Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (PPO) has a local absorption maximum in the visible spectrum at 405 nm and could provide sufficient initiating radicals to crosslink polyamic diacrylate ester in NMP[1]. Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (GR-XBPO) could be used as the reductant, and Monoethanolamine as the oxygen inhibition agent. After UV irradiation, oxygen-containing groups (OCGs) on the graphene oxide (GO) plane and edges are largely removed due to the reduction of GO by free radicals generated by photoinitiator decomposition[2]. | [Preparation]
Under nitrogen protection and room temperature, 1.4 g of zinc powder was added to the 100 mL reaction flask with stirring.15 ml of ethyl acetate, 4.1 g of 2,4,6-trimethyl benzoyl chloride, and a solution of 2.5 g of phenylphosphorus dichloride in 5 ml of ethyl acetate was added dropwise to the mixture. After that, the temperature was continued for 2 hours. After the completion of the reaction, 20 mL of water and 1.5 mL of 30% hydrogen peroxide were respectively added to the system, and the reaction was continued for half an hour. Saturated sodium bicarbonate solution was added to neutralize weakly alkaline. Finally, Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide was obtained after purification.
 | [References]
[1] Maruti Hegde. “3D Printing All-Aromatic Polyimides using Mask-Projection Stereolithography: Processing the Nonprocessable.” Advanced Materials 29 31 (2017).
[2] Bing Xue, Yuchun Yang, Yingquan Zou. “A UV-light induced photochemical method for graphene oxide reduction.” Journal of Materials Science 52 21 (2017): 12742–12750. |
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IGM RESINS
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Energy Chemical
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jiliang chemicals
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