3-Fluoro-2-formylphenylboronic acid
3-Fluoro-2-formylphenylboronic acid (CAS 871126-15-7) is a key organic building block with the molecular formula C7H6BFO3 and a molecular weight of 167.93 g/mol. This disubstituted aryl boronic acid is noted for undergoing unique tautomeric rearrangements in solution. It serves as a versatile intermediate in chemical synthesis, particularly in the development of novel pharmaceutical compounds and advanced materials. Its reactive aldehyde and boronic acid functionalities make it valuable for various coupling reactions.

Pharmaceutical Intermediate
Utilised in the synthesis of active pharmaceutical ingredients (APIs) and complex drug molecules, leveraging its dual reactivity for sophisticated organic transformations.
Organic Synthesis Building Block
A valuable component in constructing intricate organic architectures, employed in cross-coupling reactions and the formation of carbon-carbon bonds.
Material Science Research
Applicable in the design and synthesis of novel materials, including functional polymers and organic electronic components, owing to its unique structural features.
| Molecular weight | 167.93 |
|---|---|
| Empirical formula | C7H6BFO3 |
| Assay | ≥95% |
| Storage temperature | 2-8°C |
| Application | • Undergoes unprecedented tautomeric rearrangement in solution1 |
| Melting point | 123-127 °C |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Transport (UN / ADR) | UN 3261 8 / PGII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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 3-Fluoro-2-formylphenylboronic acid used for?
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3-Fluoro-2-formylphenylboronic acid is primarily used as an intermediate and building block in organic synthesis, particularly for pharmaceutical and material science applications. It is known for undergoing tautomeric rearrangement in solution.
What are the CAS number and molecular formula for 3-Fluoro-2-formylphenylboronic acid?
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The CAS number is 871126-15-7 and the molecular formula is C7H6BFO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Fluoro-2-formylphenylboronic acid with an assay of ≥95%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety and handling requirements for this chemical?
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This compound carries a Danger signal word and is classified with H314 hazard statement, indicating it causes severe skin burns and eye damage. Handle with appropriate personal protective equipment, including gloves, eye protection, and protective clothing. Ensure adequate ventilation and avoid contact. Store at 2-8°C.
How is 3-Fluoro-2-formylphenylboronic acid packed, shipped, and exported?
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This chemical is shipped as UN 3261, Class 8, Packing Group II. We adhere to all international regulations for the safe packing, handling, and export of hazardous materials.
How can I request a sample or quote for 3-Fluoro-2-formylphenylboronic acid?
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To request a sample or a quote, please contact our sales team through the website or by phone. Provide the product name and CAS number for prompt service.
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