2,3-Difluorophenylboronic acid
2,3-Difluorophenylboronic acid (CAS: 121219-16-7) is an organoboron compound with the molecular formula F2C6H3B(OH)2 and a molecular weight of 157.91 g/mol. This aryl boronic acid serves as a key reactant in Suzuki-Miyaura cross-coupling reactions. It is instrumental in the preparation of complex organic molecules, particularly those with biological and pharmacological relevance, making it a valuable reagent in synthetic chemistry.
- IUPAC
- 2,3-Difluorobenzeneboronic acid
- Synonyms
- F2C6H3B(OH)22,3-Difluorobenzeneboronic acid

Suzuki-Miyaura Cross-Coupling
Utilised as a coupling partner in Suzuki-Miyaura reactions, enabling the formation of carbon-carbon bonds for constructing complex molecular architectures.
Pharmaceutical Intermediate Synthesis
Serves as a crucial building block in the synthesis of biologically active molecules and potential drug candidates, facilitating the introduction of the difluorophenyl moiety.
Organic Synthesis Reagent
A versatile reagent employed in general organic synthesis for the preparation of advanced intermediates and fine chemicals.
| Molecular weight | 157.91 |
|---|---|
| Linear formula | F2C6H3B(OH)2 |
| Application | Reactant for:• Suzuki-Miyaura cross-coupling reactions1• Preparation of biologically and pharmacologically active molecules2,3 |
| Melting point | 95 °C (dec.)(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 2,3-Difluorophenylboronic acid primarily used for?
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2,3-Difluorophenylboronic acid is primarily used as a reactant in Suzuki-Miyaura cross-coupling reactions and for the preparation of biologically and pharmacologically active molecules.
What is the CAS number and formula for 2,3-Difluorophenylboronic acid?
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The CAS number is 121219-16-7, and the linear formula is F2C6H3B(OH)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical for research and development purposes. The specific grade and purity are not detailed as USP, BP, or EP. Please contact us for detailed specifications.
What are the safety considerations when handling 2,3-Difluorophenylboronic acid?
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Handling requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. The compound has a WGK Germany rating of 3, indicating it is hazardous.
How is 2,3-Difluorophenylboronic acid typically packed and shipped?
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Tech Serve Solutions specialises in the global supply and export of fine chemicals. Products are carefully packed to ensure safe transit and compliance with international shipping regulations.
How can I request a sample or quote for 2,3-Difluorophenylboronic acid?
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To request a sample or a quote, please contact our sales team directly via our website or provide your details through the product inquiry form.
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