4-Biphenylboronic acid
4-Biphenylboronic acid (CAS: 5122-94-1, C6H5C6H4B(OH)2) is a key organoboronic acid derivative with a molecular weight of 198.03. Supplied by Tech Serve Solutions with an assay of ≥95.0%, it is a versatile building block extensively utilised in organic synthesis. Its primary applications lie in cross-coupling reactions, particularly Suzuki-Miyaura couplings, for the construction of complex organic molecules, including pharmaceuticals and advanced materials.

Suzuki-Miyaura Coupling Reagent
4-Biphenylboronic acid serves as a crucial coupling partner in Suzuki-Miyaura reactions. This palladium-catalysed cross-coupling enables the formation of carbon-carbon bonds, facilitating the synthesis of biaryl compounds vital in medicinal chemistry and materials science.
Organic Synthesis Intermediate
As a readily functionalised aryl boronic acid, it acts as a versatile intermediate in multi-step syntheses. It can be employed to introduce the biphenyl moiety into various organic frameworks, contributing to the development of novel compounds.
Pharmaceutical Research
The biphenyl structural motif is present in numerous pharmacologically active compounds. 4-Biphenylboronic acid is therefore a valuable reagent in drug discovery and development for synthesising potential therapeutic agents.
Materials Science
This compound is used in the synthesis of advanced materials, such as organic light-emitting diodes (OLEDs) and liquid crystals, where the biphenyl unit imparts desirable electronic and optical properties.
| Molecular weight | 198.03 |
|---|---|
| Linear formula | C6H5C6H4B(OH)2 |
| Assay | ≥95.0% |
| Melting point | 232-245 °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 4-Biphenylboronic acid primarily used for?
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4-Biphenylboronic acid is primarily used as a key reagent in Suzuki-Miyaura cross-coupling reactions for synthesising biaryl compounds, which are important intermediates in pharmaceuticals and materials science.
What is the CAS number and chemical formula for 4-Biphenylboronic acid?
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The CAS number for 4-Biphenylboronic acid is 5122-94-1, and its chemical formula is C6H5C6H4B(OH)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Biphenylboronic acid with an assay of ≥95.0%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should 4-Biphenylboronic acid be handled?
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Handling requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if respiratory protection is needed. Refer to the Safety Data Sheet (SDS) for detailed handling instructions. It carries a WGK 3 (Germany) classification.
Is 4-Biphenylboronic acid a controlled substance?
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Based on the provided data, 4-Biphenylboronic acid is not indicated as a controlled substance. Always verify with your local regulations.
How is 4-Biphenylboronic acid packed and shipped?
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4-Biphenylboronic acid is carefully packed to ensure stability and safety during transit. Tech Serve Solutions is an experienced global exporter of fine chemicals, adhering to all relevant shipping regulations.
How can I request a quote or sample of 4-Biphenylboronic acid?
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To request a quote or a sample of 4-Biphenylboronic acid, please contact our sales team through the Tech Serve Solutions website or by calling our customer service line.
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