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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:
75980-60-8
Molecular Weight:
348.37
EC Number:
278-355-8
MDL number:
MFCD00192110
PubChem Substance ID:
24866046
NACRES:
NA.23

Quality Level

200

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

Related Categories

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

Signal Word

Warning

Hazard Statements

H317 - H361f - H411

Hazard Classifications

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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
Ela Sachyani Keneth et al.
Polymers, 12(3) (2020-03-27)
Shape memory polymers are attractive smart materials that have many practical applications and academic interest. Three-dimensional (3D) printable shape memory polymers are of great importance for the fabrication of soft robotic devices due to their ability to build complex 3D
I Capasso et al.
Scientific reports, 10(1), 612-612 (2020-01-19)
Motivated by the hierarchical micro and nanoscale features in terms of porosity of diatomite, the production of ceramic-graded porous foams with tailored porosity, obtained by using it as raw material, has been proposed. The main challenge during the foam-production process
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)
PMMA-based patternable gate insulators for organic thin-film transistors
Kim TG, et al.
Synthetic Metals, 159(7-8), 749-753 (2009)
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