Diphenyl phosphite
Diphenyl phosphite (CAS 4712-55-4), molecular formula (C6H5O)2P(O)H, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis 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
- Diphenoxyphosphine oxide,Diphenyl phosphonate,NSC 43786
| Molecular weight | 234.19 |
|---|---|
| Linear formula | (C6H5O)2P(O)H |
| Boiling point | 218-219 °C/26 mmHg(lit.) |
| Density | 1.223 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.558(lit.) |
| Vapour pressure | 5 mmHg (140 °C) |
| Vapour density | 8.1 (vs air) |
| Melting point | 12 °C(lit.) |
| Impurities tested | ≤15% phenol |
| Application | Reactant involved in:• Synthesis of N-benzylarylamide and di-Ph α-aminomethanephosphonate derivatives used as additives for thermooxidative stability of ester-based oils1• One-pot three-component Kabachnik-Fields reactions2,3• Visible light mediated oxidative phosphonylations of amines4• Modified asymmetric Pudovik addition with haloketones5• Tandem decarboxylation-coupling with natural alpha-amino acids6 |
Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 176 °C / 348.8 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| Safety statements (S) | 26-39 |
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 Diphenyl phosphite?
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Diphenyl phosphite (CAS 4712-55-4), molecular formula (C6H5O)2P(O)H, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.
What grades of Diphenyl phosphite does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Diphenyl phosphite 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 Diphenyl phosphite?
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Diphenyl phosphite has CAS number 4712-55-4 and molecular formula (C6H5O)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 Diphenyl phosphite?
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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 Diphenyl phosphite 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 Diphenyl phosphite be stored?
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Store Diphenyl phosphite 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 Diphenyl phosphite used for?
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Diphenyl phosphite is used in chemical synthesis 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 Diphenyl phosphite?
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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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