511447

Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide

97%, powder

• Synonym(s): BAPOs, Bisacylphosphine oxides
• Linear Formula: [(CH₃)₃C₆H₂CO]₂P(O)C₆H₅
• CAS Number: 162881-26-7
• Molecular Weight: 418.46
• NACRES: NA.23
• PubChem Substance ID: 24873541
• UNSPSC Code: 12162002
• EC Number: 423-340-5
• MDL number: MFCD01863675

Properties

• Quality Segment: 300
• assay: 97%
• form: powder, powder, crystals or chunks
• mp: 131-135 °C (lit.)
• solubility: acetone, acetonitrile, toluene, and hexanediol diacrylate: soluble
• SMILES string: Cc1cc(C)c(c(C)c1)C(=O)P(=O)(C(=O)c2c(C)cc(C)cc2C)c3ccccc3
• InChI: 1S/C26H27O3P/c1-16-12-18(3)23(19(4)13-16)25(27)30(29,22-10-8-7-9-11-22)26(28)24-20(5)14-17(2)15-21(24)6/h7-15H,1-6H3
• InChI key: GUCYFKSBFREPBC-UHFFFAOYSA-N

Description

General description

Phenylbis(2,4,6-trimethylbenzoyl) phosphineoxide (BAPO) is potential photoinitiator widely used in the preparation ofdental composites.

Application

Phenylbis(2,4,6-trimethylbenzoyl) phosphine oxide can be used as a photoinitiator for:

• Radical polymerization of dental resins. BAPO enhances the polymerization rate and conversion compared to other initiators.
• Preparation of divinylbenzene modified polymer-based ceramic materials for high temperature sensor applications.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H317,H413
• pcodes: P261 - P272 - P273 - P280 - P302 + P352 - P333 + P313
• Hazard Classifications: Aquatic Chronic 4 - Skin Sens. 1
• Storage Class: 11 - Combustible Solids
• wgk: WGK 1
• ppe: dust mask type N95 (US), Eyeshields, Faceshields, Gloves