Chemical Name: 2,4, 6-trimethylbenzoyldiphenyl phosphine oxide Molecular Formula: C22H21O2P CAS No.: 75980-60-8 Molecular Weight: 348.4 Specifications: specification Data Purity >98.0% Appearance Yellow solid Melting point 91-94ípC Usage: as photo initiator, used in many kinds of ink industries Remark: Our is competitive. Therefore, our product is sold well in the international market. Storage condition should be at low temperature and in the dry atmosphere. Packaging: Paper pallet or box; or as clients requirement.