2-Fluoro-5-methylphenylboronic acid
2-Fluoro-5-methylphenylboronic acid (CAS: 166328-16-1) is a versatile organoboron compound with the molecular formula FC6H3(CH3)B(OH)2 and a molecular weight of 153.95 g/mol. As an aryl boronic acid derivative, it serves as a crucial building block in organic synthesis, particularly in cross-coupling reactions. It is widely utilised in the development of novel pharmaceuticals, agrochemicals, and advanced materials due to its reactivity and functional group tolerance.

Suzuki-Miyaura Cross-Coupling Reactions
This boronic acid is an essential reagent for Suzuki-Miyaura coupling, enabling the formation of carbon-carbon bonds with aryl or vinyl halides. It is instrumental in synthesising complex organic molecules for pharmaceutical research and development.
Organic Synthesis Intermediate
Utilised as a key intermediate in multi-step syntheses, it facilitates the introduction of the 2-fluoro-5-methylphenyl moiety into target structures. This is valuable in the creation of functionalised aromatic compounds.
Materials Science
Its unique electronic and structural properties make it a component in the design and synthesis of novel organic materials, including those for electronic or optical applications.
| Molecular weight | 153.95 |
|---|---|
| Linear formula | FC6H3(CH3)B(OH)2 |
| Assay | ≥95% |
| Melting point | 77-82 °C(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-Fluoro-5-methylphenylboronic acid used for?
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2-Fluoro-5-methylphenylboronic acid is primarily used as a building block in organic synthesis, particularly for Suzuki-Miyaura cross-coupling reactions, and in the development of pharmaceuticals, agrochemicals, and advanced materials.
What is the CAS number and chemical formula?
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The CAS number is 166328-16-1, and the chemical formula is FC6H3(CH3)B(OH)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Fluoro-5-methylphenylboronic acid with an assay of ≥95%. This product is intended for research and laboratory use and is not supplied as USP, BP, or EP grade.
How should 2-Fluoro-5-methylphenylboronic acid be handled?
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Handle with appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. Users should consult the Safety Data Sheet for detailed handling and hazard information. It is classified under WGK Germany 2.
Does TSS export 2-Fluoro-5-methylphenylboronic acid?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 2-Fluoro-5-methylphenylboronic acid.
How can I request a quote or sample?
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To request a quote or sample, please contact our sales team through the website or by phone. Please specify the product name and CAS number (166328-16-1) in your request.
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