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:
Molecular Weight:
348.37
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
EC Number:
278-355-8
MDL number:
Quality Segment
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
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
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
signalword
Danger
hcodes
Hazard Classifications
Aquatic Chronic 2 - Repr. 1B - Skin Sens. 1B
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
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