Tech Serve Solutions

Methyl dichlorophosphite

CAS 3279-26-3CH3OPCl2Organic Building Blocks

Methyl dichlorophosphite (CAS 3279-26-3), molecular formula CH3OPCl2, is a high-purity chemical supplied by Tech Serve Solutions for organic building blocks 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 phosphorodichloridite
Methyl dichlorophosphite
Building BlocksChemical SynthesisOrganic Building BlocksPhosphorus CompoundsPhosphorus Halides
01 /Properties
Molecular weight132.91
Linear formulaCH3OPCl2
Boiling point93-95 °C(lit.)
Density1.376 g/mL at 20 °C(lit.)
Refractive indexn20/D 1.474(lit.)
ApplicationMethyl dichlorophosphite has been employed in the preparation of:• phosphonamidate- and phosphonate-linked phosphonopeptides1• 2-(2-iodophenyl)ethyl methyl phosphite derivative of an alcohol2• deoxyoligonucleotides on a polymer support3• cis- and trans-2-oxo-2-propionyl-1,3,2-oxazaphosphorinane4• phosphorodichloridothioates5 • oxazaphosphorinanes6
Melting point−91 °C(lit.)
02 /Safety & handling
Flammable
Flammable
Corrosive
Corrosive
Harmful / irritant
Harmful / irritant
Danger

Hazard statements

  • H226Flammable liquid and vapour
  • H314Causes severe skin burns and 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
  • 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 point25 °C / 77 °F
Transport (UN / ADR)UN 2920 3(8) / PGII
Water hazard class (WGK, DE)3
Hazard codes (EU)C
Risk statements (R)10-14-34-37
Safety statements (S)26-36/37/39-45
Supplemental hazardsReacts violently with water.

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

03 /Identifiers & registry
CAS number
3279-26-3
MDL number
MFCD00000524
PubChem substance
24854089
Beilstein registry
1697452
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 Methyl dichlorophosphite?

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Methyl dichlorophosphite (CAS 3279-26-3), molecular formula CH3OPCl2, is a high-purity chemical supplied by Tech Serve Solutions for organic building blocks applications, to USP, BP and EP standards.

What grades of Methyl dichlorophosphite does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Methyl dichlorophosphite 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 Methyl dichlorophosphite?

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Methyl dichlorophosphite has CAS number 3279-26-3 and molecular formula CH3OPCl2. Full specifications appear in the table above and in the Certificate of Analysis.

What is the typical minimum order quantity and lead time for Methyl dichlorophosphite?

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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 Methyl dichlorophosphite 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 Methyl dichlorophosphite be stored?

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Store Methyl dichlorophosphite 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 Methyl dichlorophosphite used for?

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Methyl dichlorophosphite is used in organic building blocks 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 Methyl dichlorophosphite?

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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 Methyl dichlorophosphite in a specific grade or volume?

Request a quote