Tris(pentafluorophenyl)borane
Tris(pentafluorophenyl)borane (CAS: 1109-15-5) is a specialised organoboron compound with the molecular formula (C6F5)3B and a molecular weight of 511.98 g/mol. Its unique structure, featuring a boron atom bonded to three pentafluorophenyl groups, makes it a valuable reagent in synthetic chemistry. It finds utility as a catalyst and precursor in various chemical processes, particularly in materials science and microelectronics.

Catalysis in Organic Synthesis
Tris(pentafluorophenyl)borane acts as a strong Lewis acid, enabling its use as a catalyst in various organic transformations. It is particularly effective in reactions involving electron-rich substrates and can promote polymerisation and other synthetic pathways.
Precursor for Materials Science
The compound serves as a precursor in the synthesis of novel materials. Its boron and fluorine content can be incorporated into advanced materials for applications requiring specific electronic or physical properties, including CVD and ALD processes.
Reagent in Organometallic Chemistry
It is employed as a reagent in organometallic chemistry, facilitating the formation of unique boron-containing complexes and compounds. These intermediates can be further explored for diverse chemical research and development purposes.
| Molecular weight | 511.98 |
|---|---|
| Linear formula | (C6F5)3B |
| Assay | 95% |
| Melting point | 126-131 °C(lit.) |

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 equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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.
What is Tris(pentafluorophenyl)borane used for?
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Tris(pentafluorophenyl)borane is used as a Lewis acid catalyst in organic synthesis, a precursor for materials science, and a reagent in organometallic chemistry. It is also found in analytical standards and micro/nanoelectronics applications.
What is the CAS number and formula for Tris(pentafluorophenyl)borane?
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The CAS number for Tris(pentafluorophenyl)borane is 1109-15-5. Its linear formula is (C6F5)3B.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tris(pentafluorophenyl)borane with an assay of 95%. We do not represent this product as USP, BP, or EP grade. It is supplied for research and laboratory use.
How should Tris(pentafluorophenyl)borane be handled safely?
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Handle Tris(pentafluorophenyl)borane with appropriate personal protective equipment, including dust mask type N95 (US), eyeshields, and gloves. Ensure adequate ventilation and avoid inhalation of dust and contact with skin and eyes, as it can cause skin irritation, serious eye irritation, and respiratory irritation (H315-H319-H335).
How is Tris(pentafluorophenyl)borane packed, shipped, and exported?
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Tris(pentafluorophenyl)borane is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions in compliance with all relevant shipping regulations.
How can I request a sample or quote for Tris(pentafluorophenyl)borane?
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To request a sample or a quotation for Tris(pentafluorophenyl)borane, please contact our sales department via the website or by telephone.
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