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Merck

415952

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

97%

Synonym(s):

(2,4,6-Trimethylbenzoyl)diphenylphosphine oxide, (Diphenylphosphoryl)(mesityl)methanone, 2,4,6-Trimethylbenzoylphenyl phosphinate

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About This Item

Linear Formula:
(CH3)3C6H2COP(O)(C6H5)2
CAS Number:
75980-60-8
Molecular Weight:
348.37
NACRES:
NA.23
PubChem Substance ID:
24866046
UNSPSC Code:
12162002
EC Number:
278-355-8
MDL number:
MFCD00192110

Key Documents

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InChI key

VFHVQBAGLAREND-UHFFFAOYSA-N

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

SMILES string

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

assay

97%

form

powder

mp

88-92 °C (lit.)

Quality Level

200

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.

Preparation Note

light sensitive

signalword

Warning

Hazard Classifications

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

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ9971
MKCZ9970
MKCV5825
MKCV5824
MKCT6084

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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)
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)
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
PMMA-based patternable gate insulators for organic thin-film transistors
Kim TG, et al.
Synthetic Metals, 159(7-8), 749-753 (2009)
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)
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