3-Furanylboronic acid
3-Furanylboronic acid (CAS 55552-70-0, C4H5BO3) is a heteroaryl boronic acid with a molecular weight of 111.89 g/mol. This organometallic reagent serves as a valuable building block in organic synthesis, particularly in cross-coupling reactions. It is commonly employed in the development of novel pharmaceutical intermediates and complex organic molecules, leveraging the reactivity of the boronic acid moiety for carbon-carbon bond formation.
- IUPAC
- 3-Furanboronic acid

Organic Synthesis
Utilised as a key intermediate in various organic transformations, including Suzuki-Miyaura coupling reactions for constructing complex molecular architectures.
Pharmaceutical Intermediate Development
A crucial building block for the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, facilitating the introduction of the furan ring system.
Materials Science
Can be incorporated into the design and synthesis of novel organic materials with specific electronic or optical properties.
Heterocyclic Chemistry
Enables the efficient synthesis of diverse furan-containing heterocyclic compounds, valuable in medicinal chemistry and agrochemical research.
| Molecular weight | 111.89 |
|---|---|
| Empirical formula | C4H5BO3 |
| Assay | ≥95.0% |
| Melting point | 139-144 °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 3-Furanylboronic acid used for?
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3-Furanylboronic acid is primarily used in organic synthesis as a building block, particularly in cross-coupling reactions like the Suzuki-Miyaura coupling, and in the development of pharmaceutical intermediates and novel organic molecules.
What is the CAS number and chemical formula for 3-Furanylboronic acid?
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The CAS number for 3-Furanylboronic acid is 55552-70-0, and its chemical formula is C4H5BO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Furanylboronic acid with an assay of ≥95.0%. This product is supplied for research and development purposes and is not intended for USP, BP, EP, or other pharmacopoeia grades.
What are the safety considerations when handling 3-Furanylboronic acid?
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Handling 3-Furanylboronic acid requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. Please refer to the Safety Data Sheet (SDS) for comprehensive handling instructions and hazard information.
How is 3-Furanylboronic acid packed, shipped, and exported?
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3-Furanylboronic acid is carefully packed to ensure stability and safety during transit. Tech Serve Solutions is experienced in global export and adheres to all relevant shipping regulations for chemical products.
How can I request a quote or sample of 3-Furanylboronic acid?
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To request a quote or a sample of 3-Furanylboronic acid, please contact our sales team through the website or by phone, providing your contact details and the quantity required.
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