Diphenylphosphine oxide
Diphenylphosphine oxide (CAS 4559-70-0), molecular formula (C6H5)2P(O)H, is a high-purity chemical supplied by Tech Serve Solutions for catalysis & inorganic applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- HPOPh2
| Molecular weight | 202.19 |
|---|---|
| Linear formula | (C6H5)2P(O)H |
| Assay | 97% |
| Application | Use as preparation of triarylphosphine oxides, and as asymmetric catalysts; preparation of alkenyldiphenylphosphine oxides, and Horner-Wittig reagents. |
| Melting point | 56-57 °C(lit.) |
Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Ligand For | Buchwald-Hartwig Cross Coupling ReactionHydrophosphonylationsSuzuki-Miyaura Coupling |
|---|
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS 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 Diphenylphosphine oxide?
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Diphenylphosphine oxide (CAS 4559-70-0), molecular formula (C6H5)2P(O)H, is a high-purity chemical supplied by Tech Serve Solutions for catalysis & inorganic applications, to USP, BP and EP standards.
What grades of Diphenylphosphine oxide does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Diphenylphosphine oxide in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of Diphenylphosphine oxide?
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Diphenylphosphine oxide has CAS number 4559-70-0 and molecular formula (C6H5)2P(O)H. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Diphenylphosphine oxide?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of Diphenylphosphine oxide ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should Diphenylphosphine oxide be stored?
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Store Diphenylphosphine oxide in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is Diphenylphosphine oxide used for?
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Diphenylphosphine oxide is used in catalysis & inorganic applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for Diphenylphosphine oxide?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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