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415952

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

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This Item
51144728612906816
Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide 97%

Sigma-Aldrich

415952

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

Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide 97%, powder

Sigma-Aldrich

511447

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

Trihexyltetradecylphosphonium bis(2,4,4-trimethylpentyl)phosphinate ≥90.0%

Sigma-Aldrich

28612

Trihexyltetradecylphosphonium bis(2,4,4-trimethylpentyl)phosphinate

Water-soluble TPO based nanoparticle photoinitiator contains nonionic surfactant

Sigma-Aldrich

906816

Water-soluble TPO based nanoparticle photoinitiator

form

powder

form

powder

form

-

form

powder or solid

mp

88-92 °C (lit.)

mp

131-135 °C (lit.)

mp

-

mp

-

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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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)
Coating performance and characteristics for UV-curable aliphatic urethane acrylate coatings containing norrish type I photoinitiators
Lee B, et al.
Journal of Coatings Technology and Research, 3(3), 221-229 (2006)
Yong-Chan Jeong et al.
Materials (Basel, Switzerland), 12(7) (2019-04-11)
Despite their excellent electrical and optical properties, Ag nanowires (NWs) suffer from oxidation when exposed to air for several days. In this study, we synthesized a Cs carbonate-incorporated overcoating layer by spin-coating and ultraviolet curing to prevent the thermal oxidation
Amirali Nojoomi et al.
Nature communications, 12(1), 603-603 (2021-01-29)
Two-dimensional (2D) growth-induced 3D shaping enables shape-morphing materials for diverse applications. However, quantitative design of 2D growth for arbitrary 3D shapes remains challenging. Here we show a 2D material programming approach for 3D shaping, which prints hydrogel sheets encoded with
David A Walker et al.
Science (New York, N.Y.), 366(6463), 360-364 (2019-10-19)
We report a stereolithographic three-dimensional printing approach for polymeric components that uses a mobile liquid interface (a fluorinated oil) to reduce the adhesive forces between the interface and the printed object, thereby allowing for a continuous and rapid print process
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