2,2′−Bithiophene-5-boronic acid pinacol ester
2,2′-Bithiophene-5-boronic acid pinacol ester (CAS 479719-88-5) is a key organoboron compound with a molecular weight of 292.22. This versatile building block, derived from bithiophene, is extensively employed in organic synthesis, particularly in cross-coupling reactions. Its utility extends to materials science and the development of organic electronic devices, leveraging the unique electronic properties of the bithiophene core. TSS provides this high-quality reagent for advanced research and development.
- IUPAC
- 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene
- Synonyms
- 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene

Organic Synthesis Building Block
Serves as a crucial intermediate in Suzuki-Miyaura cross-coupling reactions, enabling the formation of complex organic molecules and functional materials.
Materials Science
Used in the synthesis of novel polymers and organic semiconductors for applications in organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and field-effect transistors (OFETs).
Heterocyclic Chemistry
Facilitates the introduction of the bithiophene moiety into various molecular frameworks, aiding in the study and development of thiophene-based compounds.
Research and Development
A valuable reagent for academic and industrial laboratories exploring new synthetic methodologies and advanced material properties.
| Molecular weight | 292.22 |
|---|---|
| Empirical formula | C14H17BO2S2 |
| Refractive index | n20/D 1.5900(lit.) |
| Melting point | 35.5-38.0 °C (average) |
| 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 2,2′-Bithiophene-5-boronic acid pinacol ester used for?
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This compound is primarily used as a building block in organic synthesis, particularly for Suzuki-Miyaura cross-coupling reactions, and in the development of advanced materials for organic electronics.
What are the CAS number and molecular formula for this compound?
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The CAS number is 479719-88-5, and the empirical formula (Hill Notation) is C14H17BO2S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound as a research or technical grade reagent. We do not represent it as USP, BP, EP, or pharmacopoeia grade unless explicitly stated in the product specifications.
What are the safety and handling precautions for 2,2′-Bithiophene-5-boronic acid pinacol ester?
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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. Ensure adequate ventilation. Refer to the Safety Data Sheet (SDS) for full details.
How is this product shipped and exported?
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Tech Serve Solutions is an experienced global supplier and exporter of fine chemicals, including 2,2′-Bithiophene-5-boronic acid pinacol ester, adhering to all relevant international shipping and export regulations.
How can I request a sample or quote for 2,2′-Bithiophene-5-boronic acid pinacol ester?
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To request a sample or a quote, please contact our sales department through the TSS website or by calling our main office. Please reference the product name and CAS number.
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