5-Bromo-5′-hexyl-2,2′-bithiophene
5-Bromo-5′-hexyl-2,2′-bithiophene (CAS: 655249-04-0) is a halogenated bithiophene derivative with the molecular formula C14H17BrS2 and a molecular weight of 329.32 g/mol. This compound serves as a valuable building block in organic synthesis. It is particularly useful in the development of advanced materials for organic and printed electronics, owing to its thiophene structure and reactive bromine substituent. Offered by TSS for research and development purposes.
- IUPAC
- 2-(5-Bromothiophen-2-yl)-5-hexylthiophene
- Synonyms
- 2-(5-Bromothiophen-2-yl)-5-hexylthiophene

Organic Electronics Materials
This bithiophene derivative is a key intermediate for synthesising organic semiconductors. Its structure is amenable to polymerisation and further functionalisation for applications in organic field-effect transistors (OFETs) and organic photovoltaics (OPVs).
Chemical Synthesis
As a functionalised heterocycle, it acts as a versatile building block. The bromine atom allows for cross-coupling reactions, enabling the construction of complex molecular architectures for various research applications.
Materials Science Research
Used in the exploration of novel conjugated polymers and small molecules. Its incorporation into material designs can influence electronic properties, solubility, and film-forming characteristics.
| Molecular weight | 329.32 |
|---|---|
| Empirical formula | C14H17BrS2 |
| Assay | 98% |
| Melting point | 35-40 °C |

Hazard statements
- H301Toxic if swallowed
Precautionary statements
- P301IF SWALLOWED
| Flash point | >110 °C / >230 °F |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25 |
| Safety statements (S) | 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 5-Bromo-5′-hexyl-2,2′-bithiophene used for?
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5-Bromo-5′-hexyl-2,2′-bithiophene is primarily used as a building block in organic synthesis, particularly for developing materials for organic electronics and in materials science research.
What is the CAS number and molecular formula for 5-Bromo-5′-hexyl-2,2′-bithiophene?
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The CAS number is 655249-04-0, and the molecular formula is C14H17BrS2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Bromo-5′-hexyl-2,2′-bithiophene with an assay of 98%. We do not represent this product as USP, BP, EP, or other pharmacopoeia grades.
How should 5-Bromo-5′-hexyl-2,2′-bithiophene be handled safely?
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This compound is classified as acutely toxic (Danger, H301). Handle with extreme care in a well-ventilated area, wearing appropriate personal protective equipment, including gloves, eye protection, and respiratory protection. Avoid ingestion and contact. Refer to the Safety Data Sheet for comprehensive handling instructions.
Is 5-Bromo-5′-hexyl-2,2′-bithiophene supplied or exported by TSS?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 5-Bromo-5′-hexyl-2,2′-bithiophene.
How can I request a sample or quote for 5-Bromo-5′-hexyl-2,2′-bithiophene?
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To request a sample or a quote, please contact our sales department through the TSS website or by phone. Provide the product name and CAS number for prompt service.
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