5-Bromo-2-hexylthiophene
5-Bromo-2-hexylthiophene (CAS: 211737-28-9), with the molecular formula C10H15BrS and a molecular weight of 247.20 g/mol, is a halogenated heterocyclic organic compound. This thiophene derivative serves as a valuable building block in organic synthesis and materials science. Its unique structure makes it useful in the development of advanced materials, particularly within the field of organic electronics and polymer research.

Organic Electronics
5-Bromo-2-hexylthiophene is a key monomer and intermediate in the synthesis of conjugated polymers and organic semiconductors. These materials are fundamental to the development of organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and organic field-effect transistors (OFETs).
Materials Science Research
This compound is utilised in the design and synthesis of novel functional materials. Its thiophene core and bromo-hexyl substituents allow for tailored electronic and optical properties in advanced material applications.
Chemical Synthesis Intermediate
As a versatile building block, 5-Bromo-2-hexylthiophene is employed in complex organic synthesis pathways. The presence of the bromine atom facilitates various coupling reactions, enabling the construction of larger, functionalised molecules.
| Molecular weight | 247.20 |
|---|---|
| Empirical formula | C10H15BrS |
| Assay | 97% |
| Density | 1.231 g/mL at 25 °C |
| Refractive index | n20/D 1.529 |


Hazard statements
- H301Toxic if swallowed
- H318Causes serious eye damage
- H413May cause long-lasting harmful effects to aquatic life
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 2810 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25-41 |
| Safety statements (S) | 26-39-45 |
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-2-hexylthiophene primarily used for?
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5-Bromo-2-hexylthiophene is primarily used as a building block in organic synthesis, particularly for materials science applications like organic electronics, conjugated polymers, and organic semiconductors.
What is the CAS number and molecular formula for 5-Bromo-2-hexylthiophene?
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The CAS number for 5-Bromo-2-hexylthiophene is 211737-28-9, and its molecular formula is C10H15BrS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Bromo-2-hexylthiophene with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 5-Bromo-2-hexylthiophene be handled safely?
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5-Bromo-2-hexylthiophene is classified as dangerous. It is toxic if swallowed (H301), causes serious eye damage (H318), and may cause long lasting harmful effects to aquatic life (H413). Handle with appropriate personal protective equipment, including eyeshields, face shields, gloves, and suitable respiratory protection. Ensure adequate ventilation. Refer to the safety data sheet for comprehensive handling instructions.
How is 5-Bromo-2-hexylthiophene shipped and exported?
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As a UN 2810 substance, 5-Bromo-2-hexylthiophene is shipped and exported according to strict regulations for toxic solids, organic, n.o.s. (or liquid, depending on form). TSS ensures compliance with all international shipping and export requirements.
How can I request a sample or quote for 5-Bromo-2-hexylthiophene?
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To request a sample or a quotation for 5-Bromo-2-hexylthiophene, please contact our sales department via our website or by telephone. Our team will be pleased to assist you with your requirements.
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