Tech Serve Solutions

Triethyl phosphite

CAS 122-52-1(C2H5O)3PCatalysis & Inorganic

Triethyl phosphite (CAS 122-52-1), molecular formula (C2H5O)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
P(EtO)3,P(OEt)3
Triethyl phosphite
Chemical SynthesisPhosphine CompoundsPhosphite Ligands
01 /Properties
Molecular weight166.16
Linear formula(C2H5O)3P
Assay≥95.0% (GC)
Gradepurum
Boiling point156 °C(lit.)
Density0.969 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.413(lit.)n20/D 1.413
02 /Safety & handling
Flammable
Flammable
Harmful / irritant
Harmful / irritant
Warning

Hazard statements

  • H226Flammable liquid and vapour
  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H332Harmful if inhaled
  • H335May cause respiratory irritation

Precautionary statements

  • P261Avoid breathing dust, fume, gas or vapours
  • P305IF IN EYES
Protective equipmentEyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point54 °C / 129.2 °F
Transport (UN / ADR)UN 2323 3 / PGIII
Water hazard class (WGK, DE)1
Hazard codes (EU)Xn
Risk statements (R)10-22-36/37/38
Safety statements (S)16-26-36

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

03 /Identifiers & registry
CAS number
122-52-1
MDL number
MFCD00009084
PubChem substance
24889381
Beilstein registry
956578
04 /Quality & supply

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.

05 /Frequently asked questions

What is Triethyl phosphite?

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Triethyl phosphite (CAS 122-52-1), molecular formula (C2H5O)3P, is a high-purity chemical supplied by Tech Serve Solutions for catalysis & inorganic applications, to USP, BP and EP standards.

What grades of Triethyl phosphite does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Triethyl 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 Triethyl phosphite?

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Triethyl phosphite has CAS number 122-52-1 and molecular formula (C2H5O)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 Triethyl 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 Triethyl 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 Triethyl phosphite be stored?

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Store Triethyl 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 Triethyl phosphite used for?

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Triethyl 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 Triethyl 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.

Need Triethyl phosphite in a specific grade or volume?

Request a quote