Tech Serve Solutions

Phenylphosphine

CAS 638-21-1C6H5PH2Catalysis & Inorganic

Phenylphosphine (CAS 638-21-1), molecular formula C6H5PH2, 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.

Phenylphosphine
Chemical SynthesisPhosphine CompoundsPhosphine Ligands
01 /Properties
Molecular weight110.09
Linear formulaC6H5PH2
Boiling point160 °C(lit.)
Density0.6912 g/mL at 25 °C1.001 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.578(lit.)
Vapour pressure760 mmHg (160 °C)
Vapour density3.79 (vs air)
Storage temperature−20°C
02 /Safety & handling
Flammable
Flammable
Harmful / irritant
Harmful / irritant
Health hazard
Health hazard
Environmental hazard
Environmental hazard
Danger

Hazard statements

  • H225Highly flammable liquid and vapour
  • H250Catches fire spontaneously if exposed to air
  • H302Harmful if swallowed
  • H304May be fatal if swallowed and enters airways
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H336May cause drowsiness or dizziness
  • H361F
  • H373May cause damage to organs through prolonged exposure
  • H411Toxic to aquatic life with long-lasting effects

Precautionary statements

  • P210Keep away from heat, sparks and open flames. No smoking
  • P222Do not allow contact with air
  • P231Handle under inert gas
  • P261Avoid breathing dust, fume, gas or vapours
  • P273Avoid release to the environment
  • P422
Flash point-26 °C / -14.8 °F
Transport (UN / ADR)UN 3384 3(6.1) / PGI
Water hazard class (WGK, DE)3
Hazard codes (EU)F,Xn,N
Risk statements (R)11-20/21/22-38-48/20-51/53-62-65
Safety statements (S)16-36/37-61-62

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

03 /Identifiers & registry
CAS number
638-21-1
MDL number
MFCD00002094
PubChem substance
24885212
Beilstein registry
741946
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 Phenylphosphine?

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Phenylphosphine (CAS 638-21-1), molecular formula C6H5PH2, is a high-purity chemical supplied by Tech Serve Solutions for catalysis & inorganic applications, to USP, BP and EP standards.

What grades of Phenylphosphine does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Phenylphosphine 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 Phenylphosphine?

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Phenylphosphine has CAS number 638-21-1 and molecular formula C6H5PH2. Full specifications appear in the table above and in the Certificate of Analysis.

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

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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 Phenylphosphine 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 Phenylphosphine be stored?

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Store Phenylphosphine 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 Phenylphosphine used for?

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Phenylphosphine 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 Phenylphosphine?

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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 Phenylphosphine in a specific grade or volume?

Request a quote