Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide CAS NO.75980-60-8

It is an effective photoinitiator for UV-curable based coatings, adhesives, inks and printing plates. It is typically consumed in unsaturated polyester acrylate based systems in concentrations ranging from 1% to 4% by weight.
It offers the advantage of good shelf stability, and fast and thorough cure of coatings. It is compatible with unsaturated polyesters, acrylate monomers and oligomers for use in UV-curable systems. TPO-V: Non-benzene solvent Adapted to the cigarette packet printing ink and other industries
Absorption peak: 295nm 380nm 393nm
Melting point: 91-94°C