Molecular Structure：
Product Specifications:
| Property | Indicators |
| Appearance | Light yellow powder |
| Assay (GC) | ≥99% |
| CAS NO. | 75980-60-8 |
Melting point | 91-95℃ |
| Molecular formula | C22H21O2P |
| Molecular Weight | 348.4 |
Application：
TPO 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.PI-TPO 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.
Storage Guidelines：
This product should be sealed and stored in a closed, dry, dark place and avoid sunlight. 20 kg cardboard or 30 cardboards each pallet.