Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (CAS: 162881-26-7) is a high-purity phosphine oxide derivative. With a molecular weight of 418.46 g/mol, it functions as a versatile Type I photoinitiator. Its primary application lies in the radical polymerization of unsaturated resins, particularly effective in pigmented formulations exposed to UV light, driving efficient curing processes in various material science applications.
- Synonyms
- 162881-26-7[(CH3)3C6H2CO]2P(O)C6H5
![Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide ([(CH3)3C6H2CO]2P(O)C6H5) — chemical structure, CAS 162881-26-7; Materials Science, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F162881-26-7.png&w=3840&q=75)
UV Curing of Resins
This compound acts as a highly efficient photoinitiator for the UV-induced radical polymerization of unsaturated resins. It is especially suited for pigmented systems, ensuring effective through-curing.
Polymerization Initiator
It serves as a key reagent in polymer science for initiating polymerization reactions. Its ability to generate radicals upon UV exposure makes it valuable for synthesising polymers with specific properties.
Materials Science Applications
As a photoinitiator, it finds application in various materials science contexts, including coatings, inks, and adhesives that require rapid curing under UV radiation.
| Molecular weight | 418.46 |
|---|---|
| Linear formula | [(CH3)3C6H2CO]2P(O)C6H5 |
| Assay | 97% |
| Form | powder |
| Solubility | acetone, acetonitrile, toluene, and hexanediol diacrylate: soluble |
| Application | Versatile UV photoinitiator for radical polymerization of unsaturated resins, especially pigmented formulations. |
| Melting point | 131-135 °C(lit.) |
Hazard statements
- H317May cause an allergic skin reaction
- H413May cause long-lasting harmful effects to aquatic life
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 43-53 |
| Safety statements (S) | 22-24-37-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide used for?
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Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (CAS: 162881-26-7) is primarily used as a versatile UV photoinitiator for the radical polymerization of unsaturated resins, particularly in pigmented formulations.
What are the CAS number and chemical formula for this compound?
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The CAS number is 162881-26-7. The linear formula is [(CH3)3C6H2CO]2P(O)C6H5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide with an assay of 97%. This is a technical/research grade material, and TSS does not represent it as USP, BP, or EP grade.
What are the main safety and handling considerations?
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This compound may cause an allergic skin reaction (H317) and may cause long lasting harmful effects to aquatic life (H413). It is recommended to use a dust mask type N95 (US), eyeshields, faceshields, and gloves when handling. Avoid release into the environment.
Is this chemical available for international export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide.
How can I request a sample or a quote?
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To request a sample or obtain a quote for Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, please contact our sales team through the website or via the provided contact details.
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