Tech Serve Solutions

Diethyl methylphosphonate

CAS 683-08-9CH3P(O)(OC2H5)2Chemical Synthesis

Diethyl methylphosphonate (CAS 683-08-9), molecular formula CH3P(O)(OC2H5)2, 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
Bis(diethoxyphosphinyl)methane,DEMP,Diethoxymethylphosphine oxide
Diethyl methylphosphonate
C-C Bond FormationChemical SynthesisOlefinationSynthetic Reagents
01 /Properties
Molecular weight152.13
Linear formulaCH3P(O)(OC2H5)2
Assay≥97.0% (GC)
Boiling point194 °C(lit.)
Density1.041 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.414(lit.)n20/D 1.414
ApplicationReactant for the synthesis of: • Fluoroalkyl α- and β-aminophosphonates1• Acyclic nucleoside phosphonates with branched phosphonoethoxy-Et chains as potential antivirals2• Difluoromethyl arylphosphonates3• Pyridone alkaloids with neuritogenic activity4• Lipophilic meropenem-derived prodrugs5• Phomactin cyclohexane core and diterpenoid framework6• Phosphonylated peptides via solid-phase synthesis7
02 /Safety & handling
Harmful / irritant
Harmful / irritant
Warning

Hazard statements

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements

  • P261Avoid breathing dust, fume, gas or vapours
  • P305IF IN EYES
Protective equipmentEyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point75 °C / 167 °F
Water hazard class (WGK, DE)3
Hazard codes (EU)Xi
Risk statements (R)36/37/38
Safety statements (S)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
683-08-9
MDL number
MFCD00009813
PubChem substance
24883208
Beilstein registry
1753416
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 Diethyl methylphosphonate?

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Diethyl methylphosphonate (CAS 683-08-9), molecular formula CH3P(O)(OC2H5)2, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.

What grades of Diethyl methylphosphonate does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Diethyl methylphosphonate 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 Diethyl methylphosphonate?

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Diethyl methylphosphonate has CAS number 683-08-9 and molecular formula CH3P(O)(OC2H5)2. Full specifications appear in the table above and in the Certificate of Analysis.

What is the typical minimum order quantity and lead time for Diethyl methylphosphonate?

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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 Diethyl methylphosphonate 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 Diethyl methylphosphonate be stored?

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Store Diethyl methylphosphonate 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 Diethyl methylphosphonate used for?

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Diethyl methylphosphonate 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 Diethyl methylphosphonate?

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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 Diethyl methylphosphonate in a specific grade or volume?

Request a quote