Ethyldiphenylphosphine oxide
Ethyldiphenylphosphine oxide (CAS 1733-57-9), molecular formula C2H5P(C6H5)2(O), 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
- Diphenylphosphinoethane monoxide
| Molecular weight | 230.24 |
|---|---|
| Linear formula | C2H5P(C6H5)2(O) |
| Assay | 97% |
| Application | Reactant for:• Regioselective lactonization of unsymmetrical 1,4-diols1• Synthesis of a nanostructured dioxomolybdenum(VI) catalyst for liquid-phase epoxidation of olefins2• Reduction of tertiary phosphine oxides with DIBAL-H3• Diphenylphosphineyl-mediated synthesis of ketones4• Nucleophilic aromatic substitution of hydrogen by phosphorous stabilized carbanions5• Stereospecific reduction to form phosphines6 |
| Melting point | 120-125 °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) | 3 |
| 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.
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 Ethyldiphenylphosphine oxide?
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Ethyldiphenylphosphine oxide (CAS 1733-57-9), molecular formula C2H5P(C6H5)2(O), is a high-purity chemical supplied by Tech Serve Solutions for catalysis & inorganic applications, to USP, BP and EP standards.
What grades of Ethyldiphenylphosphine oxide does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethyldiphenylphosphine 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 Ethyldiphenylphosphine oxide?
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Ethyldiphenylphosphine oxide has CAS number 1733-57-9 and molecular formula C2H5P(C6H5)2(O). Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Ethyldiphenylphosphine 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 Ethyldiphenylphosphine 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 Ethyldiphenylphosphine oxide be stored?
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Store Ethyldiphenylphosphine 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 Ethyldiphenylphosphine oxide used for?
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Ethyldiphenylphosphine 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 Ethyldiphenylphosphine 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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