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Dimethyl vinylphosphonate

CAS 4645-32-3CH2=CHPO(OCH3)2Chemical Synthesis

Dimethyl vinylphosphonate (CAS 4645-32-3) is a clear, colourless liquid with the linear formula CH₂=CHPO(OCH₃)₂ and a molecular weight of 136.09 g/mol. This organophosphorus compound serves as a valuable building block in organic synthesis. Its reactivity makes it useful in creating specialised polymers and as an intermediate for more complex molecules in research and development settings.

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Dimethyl vinylphosphonate (CH2=CHPO(OCH3)2) — chemical structure, CAS 4645-32-3; Chemistry, fine chemical supplied by Tech Serve Solutions
Building BlocksChemical SynthesisOrganic Building BlocksPhosphonates/PhosphinatesPhosphorus Compounds
01 /Applications

Organic Synthesis Intermediate

Dimethyl vinylphosphonate is employed as a versatile intermediate in the synthesis of various organic compounds. Its phosphonate group and vinyl functionality allow for diverse chemical transformations.

Monomer for Polymerisation

The vinyl group enables this compound to act as a monomer in polymerisation reactions. It can be incorporated into polymers to introduce phosphonate functionality, modifying material properties.

Reagent in Phosphorus Chemistry

It serves as a useful reagent for introducing the phosphonate ester moiety into other molecules. This is particularly relevant in the development of flame retardants or functional materials.

02 /Properties
Molecular weight136.09
Linear formulaCH2=CHPO(OCH3)2
Assay≥95% (GC)
Boiling point197-202 °C(lit.)
Density1.146 g/mL at 20 °C(lit.)
Refractive indexn20/D 1.428
Storage temperature2-8°C
03 /Safety & handling
GHS hazard pictogram: Corrosive (GHS05)
Corrosive
Danger

Hazard statements

  • H314Causes severe skin burns and eye damage

Precautionary statements

  • P280Wear protective gloves, clothing and eye/face protection
  • P305IF IN EYES
  • P310Immediately call a POISON CENTER or doctor
Protective equipmentFaceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point98 °C / 208.4 °F
Transport (UN / ADR)UN 3265 8 / PGIII
Water hazard class (WGK, DE)1
Hazard codes (EU)C
Risk statements (R)34
Safety statements (S)26-36/37/39-45

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

04 /Identifiers & registry
CAS number
4645-32-3
MDL number
MFCD00015488
Beilstein registry
1748827
05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets 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.

06 /Frequently asked questions

What is Dimethyl vinylphosphonate used for?

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Dimethyl vinylphosphonate is primarily used as a building block and intermediate in organic synthesis, including the preparation of specialised polymers and phosphorus-containing compounds.

What is the CAS number and formula for Dimethyl vinylphosphonate?

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The CAS number is 4645-32-3, and its linear formula is CH₂=CHPO(OCH₃)₂.

What grade and purity does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Dimethyl vinylphosphonate with an assay of ≥95% (GC). This product is not represented as USP, BP, EP, or other pharmacopoeia grades.

How should Dimethyl vinylphosphonate be handled safely?

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Dimethyl vinylphosphonate is classified as corrosive (H314) and causes severe skin burns and eye damage. Appropriate personal protective equipment, including gloves, goggles, and face shields, must be worn. Handle in a well-ventilated area or use a suitable respirator.

How is Dimethyl vinylphosphonate packed and shipped?

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Dimethyl vinylphosphonate is shipped as UN 3265, Class 8, Packing Group III. Specific packaging details are available upon request, and TSS is an experienced global exporter.

How can I request a sample or quote?

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To request a sample or quote for Dimethyl vinylphosphonate, please contact the TSS sales team through our website or by phone.

Need Dimethyl vinylphosphonate in a specific grade or volume?