Potassium m-tolyltrifluoroborate
Potassium m-tolyltrifluoroborate (CAS: 850623-42-6), with the formula C7H7BF3K and a molecular weight of 198.03 g/mol, is a valuable organoboron compound. It serves as a versatile building block in organic synthesis, particularly in cross-coupling reactions. Its stability and reactivity profile make it a key reagent for introducing the m-tolyl group in the preparation of complex organic molecules, pharmaceuticals, and agrochemicals.
- IUPAC
- Potassium 3-methylphenyltrifluoroborate
- Synonyms
- Potassium 3-methylphenyltrifluoroborate

Suzuki-Miyaura Coupling Reactions
Potassium m-tolyltrifluoroborate is frequently employed as a coupling partner in palladium-catalyzed Suzuki-Miyaura reactions. It enables the efficient formation of carbon-carbon bonds for aryl-aryl or aryl-alkyl linkages.
Organic Synthesis Intermediate
This trifluoroborate salt acts as a stable and easily handled source of the m-tolyl moiety. It is utilised in the synthesis of a wide array of functionalised organic compounds and advanced materials.
Pharmaceutical and Agrochemical Development
The m-tolyl group is a common structural motif in many biologically active compounds. Potassium m-tolyltrifluoroborate facilitates the incorporation of this group during the development of new pharmaceutical agents and crop protection chemicals.
| Molecular weight | 198.03 |
|---|---|
| Empirical formula | C7H7BF3K |
| Assay | 97% |
| Melting point | 243-248 °C |

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
| 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 Potassium m-tolyltrifluoroborate used for?
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Potassium m-tolyltrifluoroborate is primarily used as a reagent in organic synthesis, notably in Suzuki-Miyaura cross-coupling reactions for the introduction of the m-tolyl group into complex molecules. It is also a key intermediate in the development of pharmaceuticals and agrochemicals.
What are the CAS number and formula for Potassium m-tolyltrifluoroborate?
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The CAS number for Potassium m-tolyltrifluoroborate is 850623-42-6, and its chemical formula is C7H7BF3K.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Potassium m-tolyltrifluoroborate with an assay of 97%. This product is supplied for research and development purposes and is not intended for use as USP, EP, or BP grade material.
How should Potassium m-tolyltrifluoroborate be handled?
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Potassium m-tolyltrifluoroborate is classified with warning signal words and hazard statements indicating it causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Always handle in a well-ventilated area, wear appropriate personal protective equipment, including gloves, eye protection, and respiratory protection if needed, and avoid dust formation. Refer to the Safety Data Sheet (SDS) for detailed handling instructions.
Is Potassium m-tolyltrifluoroborate a controlled substance?
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The provided data does not indicate that Potassium m-tolyltrifluoroborate is a controlled substance.
How is this chemical packed and shipped?
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Potassium m-tolyltrifluoroborate is carefully packaged to ensure safe transit and is available for global export by Tech Serve Solutions.
How can I request a sample or quote for Potassium m-tolyltrifluoroborate?
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To request a sample or a quotation, please use the 'Request a Quote' or 'Contact Us' form on our website, providing the product name and CAS number.
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