4-Bromo-2,3-dimethylthiophene
4-Bromo-2,3-dimethylthiophene (CAS: 30153-46-9) is a halogenated heterocyclic compound with a molecular weight of 191.09 g/mol. This organobromine compound serves as a valuable building block in organic synthesis. Its structure, featuring a thiophene ring substituted with bromine and methyl groups, makes it suitable for various chemical transformations and the construction of more complex molecules, particularly in the fields of medicinal chemistry and materials science.
- Synonyms
- C6H7BrS

Organic Synthesis Intermediate
Serves as a versatile building block for creating intricate organic molecules. The presence of the bromine atom allows for various coupling reactions, such as Suzuki or Stille couplings, enabling the formation of new carbon-carbon bonds.
Pharmaceutical Research
Utilised in the development of novel pharmaceutical compounds. The thiophene core is a common scaffold in many biologically active molecules, and functionalisation via this intermediate can lead to new drug candidates.
Materials Science
Can be incorporated into the synthesis of functional materials, including organic semiconductors and polymers, due to the electronic properties associated with the thiophene ring system.
| Molecular weight | 191.09 |
|---|---|
| Empirical formula | C6H7BrS |
| Assay | 97% |
| Density | 1.495 g/mL at 25 °C |
| Refractive index | n20/D 1.571 |
| Storage temperature | 2-8°C |

Hazard statements
- H302Harmful if swallowed
| Flash point | 93 °C / 199.4 °F |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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-Bromo-2,3-dimethylthiophene used for?
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4-Bromo-2,3-dimethylthiophene is primarily used as a building block in organic synthesis, particularly for the development of pharmaceutical compounds and functional materials. Its reactive bromine atom facilitates various coupling reactions.
What is the CAS number and molecular formula for 4-Bromo-2,3-dimethylthiophene?
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The CAS number for 4-Bromo-2,3-dimethylthiophene is 30153-46-9. The empirical formula is C6H7BrS, and the molecular weight is 191.09 g/mol.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Bromo-2,3-dimethylthiophene with a purity of 97%. We do not represent this product as USP, BP, or EP grade; it is supplied for research and chemical synthesis purposes.
What are the safety considerations when handling 4-Bromo-2,3-dimethylthiophene?
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4-Bromo-2,3-dimethylthiophene is classified as a Warning substance (GHS07) and is harmful if swallowed (H302). Appropriate personal protective equipment, including gloves and eye protection, should be used, and it should be handled in a well-ventilated area. Refer to the Safety Data Sheet for full details.
How is 4-Bromo-2,3-dimethylthiophene packed, shipped, and exported?
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4-Bromo-2,3-dimethylthiophene is carefully packed according to industry standards to ensure safe transit. Tech Serve Solutions is a global supplier and exporter, experienced in handling international shipments of fine chemicals.
How can I request a quote or sample for 4-Bromo-2,3-dimethylthiophene?
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To request a quote or sample of 4-Bromo-2,3-dimethylthiophene, please contact our sales department through the website or by telephone. Our team will be pleased to assist you.
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