Trimethyl phosphite
Trimethyl phosphite (CAS 121-45-9), molecular formula (CH3O)3P, 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
- Methyl phosphite,P(OMe)3,Trimethoxyphosphine
| Molecular weight | 124.08 |
|---|---|
| Linear formula | (CH3O)3P |
| Assay | ≥99.999% trace metals basis |
| Form | liquid |
| Boiling point | 111-112 °C(lit.) |
| Density | 1.052 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.408(lit.) |
| Melting point | −78 °C(lit.) |
| Vapour pressure | 17 mmHg (20 °C) |
| Vapour density | 4.3 (vs air) |
| Impurities tested | ≤0.5% trimethyl phosphate |
Hazard statements
- H226Flammable liquid and vapour
- 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 | 28 °C / 82.4 °F |
| Transport (UN / ADR) | UN 2329 3 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 10-22-37/38-41 |
| 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 Trimethyl phosphite?
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Trimethyl phosphite (CAS 121-45-9), molecular formula (CH3O)3P, is a high-purity chemical supplied by Tech Serve Solutions for catalysis & inorganic applications, to USP, BP and EP standards.
What grades of Trimethyl phosphite does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Trimethyl 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 Trimethyl phosphite?
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Trimethyl phosphite has CAS number 121-45-9 and molecular formula (CH3O)3P. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Trimethyl 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 Trimethyl 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 Trimethyl phosphite be stored?
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Store Trimethyl 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 Trimethyl phosphite used for?
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Trimethyl phosphite 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 Trimethyl 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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