2-Thiophenepropionic acid
2-Thiophenepropionic acid (CAS: 5928-51-8), a heterocyclic organic compound with the formula C7H8O2S and a molecular weight of 156.20 g/mol, serves as a valuable building block in chemical synthesis. It is characterised by its thiophene ring and propionic acid side chain. This compound is primarily utilised in the development of novel materials and pharmaceutical intermediates, offering a unique structural motif for complex molecule construction. It is supplied by TSS with an assay of 98%.
- IUPAC
- 3-(2-Thienyl)propionic acid
- Synonyms
- 3-(2-Thienyl)propionic acid

Pharmaceutical Intermediate
Used in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates. Its heterocyclic structure is incorporated into molecules targeting various therapeutic areas.
Organic Synthesis Building Block
Serves as a versatile reagent in organic chemistry laboratories for the construction of complex organic molecules. It facilitates the introduction of the thiophene moiety into larger structures.
Materials Science
Applied in the development of novel organic materials, potentially for electronic or optical applications due to the presence of the thiophene ring.
| Molecular weight | 156.20 |
|---|---|
| Empirical formula | C7H8O2S |
| Assay | 98% |
| Melting point | 46-49 °C(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Flash point | >110 °C / >230 °F |
| Transport (UN / ADR) | UN 3261 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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 2-Thiophenepropionic acid used for?
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2-Thiophenepropionic acid is primarily used as a building block in organic synthesis and as an intermediate in the development of pharmaceuticals and novel materials.
What are the CAS number and formula for 2-Thiophenepropionic acid?
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The CAS number is 5928-51-8 and the empirical formula is C7H8O2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Thiophenepropionic acid with an assay of 98%. We do not represent this product as USP, BP, EP, or any pharmacopoeia grade.
What are the main hazards associated with 2-Thiophenepropionic acid?
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This compound is classified with the GHS signal word 'Danger' and carries the hazard statement H314, indicating it causes severe skin burns and eye damage. Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, is essential.
How is 2-Thiophenepropionic acid packed and shipped?
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2-Thiophenepropionic acid is packed according to international regulations for dangerous goods (UN 3261 8 / PGII) and exported globally by Tech Serve Solutions.
How can I request a sample or quote for 2-Thiophenepropionic acid?
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Please contact our sales team via the website or direct email to request a sample or a quotation for 2-Thiophenepropionic acid.
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