Tech Serve Solutions

Triisobutylphosphine

CAS 4125-25-1[(CH3)2CHCH2]3PCatalysis & Inorganic

Triisobutylphosphine (CAS 4125-25-1), molecular formula [(CH3)2CHCH2]3P, 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
Cytop® 341,Tris(2-methylpropyl)phosphine
Triisobutylphosphine
Chemical SynthesisPhosphine CompoundsPhosphine Ligands
01 /Properties
Molecular weight202.32
Linear formula[(CH3)2CHCH2]3P
Assay≥90% (GC)
Boiling point126 °C/50 mmHg(lit.)
Density0.811 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.451(lit.)
02 /Safety & handling
Flammable
Flammable
Corrosive
Corrosive
Harmful / irritant
Harmful / irritant
Danger

Hazard statements

  • H225Highly flammable liquid and vapour
  • H250Catches fire spontaneously if exposed to air
  • H302Harmful if swallowed
  • H312Harmful in contact with skin
  • H314Causes severe skin burns and eye damage
  • H332Harmful if inhaled

Precautionary statements

  • P210Keep away from heat, sparks and open flames. No smoking
  • P222Do not allow contact with air
  • P231Handle under inert gas
  • P280Wear protective gloves, clothing and eye/face protection
  • P305IF IN EYES
  • P422
Protective equipmentFaceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point10 °C / 50 °F
Transport (UN / ADR)UN 2845 4.2
Water hazard class (WGK, DE)3
Hazard codes (EU)F,C
Risk statements (R)17-20/21/22-34
Safety statements (S)16-23-26-36/37/39-45

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

03 /Identifiers & registry
CAS number
4125-25-1
MDL number
MFCD00015049
PubChem substance
24864645
Beilstein registry
1738664
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 Triisobutylphosphine?

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Triisobutylphosphine (CAS 4125-25-1), molecular formula [(CH3)2CHCH2]3P, is a high-purity chemical supplied by Tech Serve Solutions for catalysis & inorganic applications, to USP, BP and EP standards.

What grades of Triisobutylphosphine does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Triisobutylphosphine 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 Triisobutylphosphine?

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Triisobutylphosphine has CAS number 4125-25-1 and molecular formula [(CH3)2CHCH2]3P. Full specifications appear in the table above and in the Certificate of Analysis.

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

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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 Triisobutylphosphine 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 Triisobutylphosphine be stored?

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Store Triisobutylphosphine 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 Triisobutylphosphine used for?

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Triisobutylphosphine 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 Triisobutylphosphine?

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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 Triisobutylphosphine in a specific grade or volume?

Request a quote