5-Nitrothiophene-2-carboxylic acid
5-Nitrothiophene-2-carboxylic acid (CAS: 6317-37-9; C5H3NO4S) is a vital heterocyclic building block with a molecular weight of 173.15 g/mol. This compound serves as a key intermediate in chemical synthesis, particularly within the realm of organic chemistry. Its structure, featuring a thiophene ring functionalised with both a nitro group and a carboxylic acid, makes it valuable for constructing more complex molecules for research and development.

Organic Synthesis Intermediate
Utilised as a building block in the synthesis of novel organic compounds. Its functional groups allow for diverse chemical transformations.
Pharmaceutical Research
Serves as a precursor or intermediate in the development of potential pharmaceutical agents. The thiophene core is present in various biologically active molecules.
Material Science
Investigated for use in the creation of advanced materials due to its specific electronic and structural properties. Useful in developing functional organic materials.
| Molecular weight | 173.15 |
|---|---|
| Empirical formula | C5H3NO4S |
| Assay | ≥98% |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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-Nitrothiophene-2-carboxylic acid used for?
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5-Nitrothiophene-2-carboxylic acid is primarily used as a building block in organic synthesis and for research in pharmaceutical development and material science.
What are the CAS number and formula for 5-Nitrothiophene-2-carboxylic acid?
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The CAS number is 6317-37-9 and the empirical formula is C5H3NO4S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Nitrothiophene-2-carboxylic acid with an assay of ≥98%. This is a technical/research grade material and is not represented as USP, BP, EP, or any pharmacopoeia grade.
What are the safety and handling considerations for this compound?
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This compound requires appropriate personal protective equipment, including eyeshields and gloves. Respiratory protection such as a type N95 (US) or type P1 (EN143) respirator filter is recommended. It is classified under WGK Germany 3, indicating a high hazard to water.
Is this chemical a controlled substance?
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Based on the provided data, 5-Nitrothiophene-2-carboxylic acid (CAS: 6317-37-9) is not indicated as a controlled substance.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, and handles packing, shipping, and export in compliance with all relevant regulations.
How can I request a quote or sample?
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To request a quote or sample of 5-Nitrothiophene-2-carboxylic acid, please contact our sales team through the website or direct inquiry channels.
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