3,5-Dibromothiophene-2-carboxylic acid
3,5-Dibromothiophene-2-carboxylic acid (CAS: 7311-68-4) is a halogenated heterocyclic compound with the molecular formula C5H2Br2O2S and a molecular weight of 285.94 g/mol. This thiophene derivative serves as a valuable building block in organic synthesis, particularly for the construction of more complex molecules. Its primary applications lie in the fields of chemical research and development, contributing to advancements in medicinal chemistry and materials science.
- Synonyms
- C5H2Br2O2S3,5-Dibromothiophene-2-carboxylic acid

Organic Synthesis Intermediate
Utilised as a key precursor in the synthesis of various organic compounds. Its reactive bromine atoms and carboxylic acid group allow for diverse chemical transformations.
Medicinal Chemistry Research
Serves as a structural motif or intermediate in the development of novel pharmaceutical agents. The thiophene core is present in numerous biologically active molecules.
Materials Science
Involved in the synthesis of functional materials, potentially including organic semiconductors or polymers, where the thiophene ring can impart specific electronic properties.
| Molecular weight | 285.94 |
|---|---|
| Empirical formula | C5H2Br2O2S |
| Assay | 95% |
| Melting point | 215-220 °C |

Hazard statements
- H302Harmful if swallowed
| 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 3,5-Dibromothiophene-2-carboxylic acid used for?
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3,5-Dibromothiophene-2-carboxylic acid is primarily used as a building block in organic synthesis, with applications in medicinal chemistry research and materials science.
What are the CAS number and formula for 3,5-Dibromothiophene-2-carboxylic acid?
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The CAS number is 7311-68-4 and the empirical formula is C5H2Br2O2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,5-Dibromothiophene-2-carboxylic acid with an assay of 95%. We do not represent this product as USP, BP, EP or other pharmacopoeia grades.
How should 3,5-Dibromothiophene-2-carboxylic acid be handled?
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3,5-Dibromothiophene-2-carboxylic acid is classified as harmful if swallowed (H302). Handle with appropriate personal protective equipment in a well-ventilated area. Refer to the Safety Data Sheet for detailed handling information.
Can Tech Serve Solutions export this chemical?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and laboratory reagents.
How can I request a quote or sample?
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Please contact our sales team via the website or phone to request a quote or a sample of 3,5-Dibromothiophene-2-carboxylic acid.
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