4-(4-Bromophenyl)thiophene-2-carboxylic acid
4-(4-Bromophenyl)thiophene-2-carboxylic acid (CAS 26145-14-2; Formula: C11H7BrO2S; MW: 283.14) is a heterocyclic organic compound. It serves as a valuable building block in chemical synthesis, particularly within the realm of thiophene derivatives. This compound is primarily utilised in research and development settings for the creation of more complex molecules, offering a reactive carboxylic acid group and a bromophenyl substituent for further functionalisation.

Organic Synthesis Intermediate
This thiophene derivative is employed as a key intermediate in multi-step organic syntheses. Its structure allows for diverse chemical modifications, facilitating the construction of novel organic compounds.
Pharmaceutical Research
It can be utilised in the exploratory phases of pharmaceutical research for the synthesis of potential drug candidates. The bromophenyl and thiophene moieties offer versatile platforms for medicinal chemistry investigations.
Materials Science
This compound may find application in the development of new materials, where its unique structural features can be leveraged to impart specific electronic or physical properties.
| Molecular weight | 283.14 |
|---|---|
| Empirical formula | C11H7BrO2S |
| Assay | 97% |
| Melting point | 238-242 °C |

Hazard statements
- H302Harmful if swallowed
- H319Causes serious eye irritation
- H413May cause long-lasting harmful effects to aquatic life
Precautionary statements
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 22-36 |
| Safety statements (S) | 26 |
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-(4-Bromophenyl)thiophene-2-carboxylic acid used for?
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4-(4-Bromophenyl)thiophene-2-carboxylic acid is primarily used as a building block in organic synthesis and in pharmaceutical and materials science research for the creation of complex molecules.
What is the CAS number and chemical formula?
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The CAS number is 26145-14-2, and the chemical formula is C11H7BrO2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-(4-Bromophenyl)thiophene-2-carboxylic acid with an assay of 97%. This product is not represented as USP, BP, EP, or other pharmacopoeial grades.
How should I handle 4-(4-Bromophenyl)thiophene-2-carboxylic acid safely?
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Handle with appropriate personal protective equipment including a dust mask (N95 type), eyeshields, and gloves. Avoid ingestion and contact with eyes and skin. This compound is harmful if swallowed and causes serious eye irritation.
Is this chemical a controlled substance?
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Based on the provided data, 4-(4-Bromophenyl)thiophene-2-carboxylic acid is not listed as a controlled substance.
How is this chemical shipped and exported?
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Tech Serve Solutions specialises in global supply and export of fine chemicals and laboratory reagents, adhering to all necessary shipping and customs regulations.
How can I request a sample or a quote?
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Please contact Tech Serve Solutions directly through our website or sales channels to request a sample or obtain a quotation for 4-(4-Bromophenyl)thiophene-2-carboxylic acid.
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