Tech Serve Solutions

Methyl diphenylphosphinite

CAS 4020-99-9(C6H5)2POCH3Catalysis & Inorganic

Methyl diphenylphosphinite (CAS 4020-99-9), molecular formula (C6H5)2POCH3, 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
Diphenylmethoxyphosphine,Methoxydiphenylphosphine,NSC 171167
Methyl diphenylphosphinite
Chemical SynthesisPhosphine CompoundsPhosphorus Precursors
01 /Properties
Molecular weight216.22
Linear formula(C6H5)2POCH3
Assay97%
Boiling point149 °C/6 mmHg(lit.)
Density1.078 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.604(lit.)
Storage temperature2-8°C
ApplicationAsed as:• Catalyst for hydroformylative desymmetrization of bisalkenyl carbinols and bishomoallylic carbinols1• Ligand in rhodium-catalyzed hydroformylation of bishomoallylic alcohols2• Calatyst in preparation of γ-lactones via branched-regioselective hydroformylation reactions3• Ligand for nickel-catalyzed hydrocyanation reactions4• Catalyst in annulation reactions5
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 point>113 °C / >235.4 °F
Transport (UN / ADR)UN 2810 6.1 / PGIII
Water hazard class (WGK, DE)3
Hazard codes (EU)Xi
Risk statements (R)36/37/38
Safety statements (S)26-37/39

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

03 /Identifiers & registry
CAS number
4020-99-9
MDL number
MFCD00048025
PubChem substance
24848958
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 diphenylphosphinite?

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Methyl diphenylphosphinite (CAS 4020-99-9), molecular formula (C6H5)2POCH3, is a high-purity chemical supplied by Tech Serve Solutions for catalysis & inorganic applications, to USP, BP and EP standards.

What grades of Methyl diphenylphosphinite does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Methyl diphenylphosphinite 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 diphenylphosphinite?

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Methyl diphenylphosphinite has CAS number 4020-99-9 and molecular formula (C6H5)2POCH3. 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 diphenylphosphinite?

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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 diphenylphosphinite 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 diphenylphosphinite be stored?

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Store Methyl diphenylphosphinite 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 diphenylphosphinite used for?

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Methyl diphenylphosphinite 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 Methyl diphenylphosphinite?

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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 diphenylphosphinite in a specific grade or volume?

Request a quote