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Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide TPO 75980-60-8


Product Name: Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide TPO
CAS: 75980-60-8
MF: C22H21O2P
MW: 348.37
EINECS: 278-355-8
Melting point: 88-92 °C(lit.)
Boiling point: 519.6±60.0 °C(Predicted)
Density: 1.12 g/mL at 25 °C(lit.)
Refractive index: n20/D 1.475(lit.)
Fp: >230 °F


Product name TPO
CAS 75980-60-8
Appearance Light yellow Powder
Purity 99%Min
Package 1 kg/bag or 20 kg/drum


1. Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide is a photo initiator, used in many kinds of ink industries

2. 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).

3. It can also be used in the formation of UV curable urethane-acrylate coatings.

4. 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.

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