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Sigma-Aldrich

Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide

97%

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Synonym(s):
(2,4,6-Trimethylbenzoyl)diphenylphosphine oxide, (Diphenylphosphoryl)(mesityl)methanone, 2,4,6-Trimethylbenzoylphenyl phosphinate
Linear Formula:
(CH3)3C6H2COP(O)(C6H5)2
CAS Number:
Molecular Weight:
348.37
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

97%

form

powder

mp

88-92 °C (lit.)

SMILES string

Cc1cc(C)c(c(C)c1)C(=O)P(=O)(c2ccccc2)c3ccccc3

InChI

1S/C22H21O2P/c1-16-14-17(2)21(18(3)15-16)22(23)25(24,19-10-6-4-7-11-19)20-12-8-5-9-13-20/h4-15H,1-3H3

InChI key

VFHVQBAGLAREND-UHFFFAOYSA-N

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This Item
51144728612906808
mp

88-92 °C (lit.)

mp

131-135 °C (lit.)

mp

-

mp

-

form

powder

form

powder

form

-

form

powder or solid

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

-

General description

Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide (TPO) is a monoacylphosphine oxide based photoinitiator that can be incorporated in a variety of polymeric matrixes for efficient curing and color stability of the resin.

Application

TPO can be used in the photo-crosslinking of PMMA composite, which can further be used as a gate insulator in organic thin film transistors (OTFTs). It can also be used in the formation of UV curable urethane-acrylate coatings. It may also be used in the photoinduced reaction for the formation of organophosphine compounds, which potentially find their usage as ligands with metal catalysts and reagents.

Storage and Stability

light sensitive

signalword

Warning

Hazard Classifications

Aquatic Chronic 2 - Repr. 2 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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PMMA-based patternable gate insulators for organic thin-film transistors
Kim TG, et al.
Synthetic Metals, 159(7-8), 749-753 (2009)
Frederik Kotz et al.
Advanced materials (Deerfield Beach, Fla.), 31(26), e1805982-e1805982 (2019-02-19)
3D printing has emerged as an enabling technology for miniaturization. High-precision printing techniques such as stereolithography are capable of printing microreactors and lab-on-a-chip devices for efficient parallelization of biological and biochemical reactions under reduced uptake of reactants. In the world
Andrew V Healy et al.
Pharmaceutics, 11(12) (2019-12-11)
The introduction of three-dimensional printing (3DP) has created exciting possibilities for the fabrication of dosage forms, paving the way for personalized medicine. In this study, oral dosage forms of two drug concentrations, namely 2.50% and 5.00%, were fabricated via stereolithography
Monomer-to-polymer conversion and micro-tensile bond strength to dentine of experimental and commercial adhesives containing diphenyl (2, 4, 6-trimethylbenzoyl) phosphine oxide or a camphorquinone/amine photo-initiator system
Miletic V, et al.
Journal of Dentistry, 41(10), 918-926 (2013)
Photoinduced reductive perfluoroalkylation of phosphine oxides: synthesis of P-perfluoroalkylated phosphines using TMDPO and perfluoroalkyl iodides
Sato Y, et al.
Chemical Communications (Cambridge, England), 51(52), 10385-10388 (2015)

Articles

The manufacture of monomers for use in ophthalmic applications is driven by the need for higher purity, improved reliability of manufacturing supply, but ultimately by the need for the increased comfort, convenience, and safety of contact lens wearers. Daily wear contact lenses have the potential to fill this need for many customers; however, their widespread use is constrained by higher costs compared to weekly- or monthly-based lenses. New approaches that improve cost structure and result in higher quality raw materials are needed to help make contact lenses more affordable and accelerate growth of the contact lens market.

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