4-(5-Formyl-2-thienyl)benzoic acid
4-(5-Formyl-2-thienyl)benzoic acid (CAS: 174623-07-5), with the molecular formula C12H8O3S and a molecular weight of 232.26 g/mol, is a heterocyclic organic compound. This versatile building block is primarily utilised in chemical synthesis for the construction of more complex molecules. Its structure, featuring both a formyl and a carboxylic acid group attached to a thiophene ring, allows for diverse chemical modifications and reactions, making it a valuable reagent for research and development.

Organic Synthesis Intermediate
Serves as a key intermediate in the multi-step synthesis of various organic compounds. The presence of reactive functional groups facilitates its incorporation into complex molecular architectures.
Heterocyclic Chemistry Research
A valuable reagent for researchers exploring novel thiophene derivatives and heterocyclic scaffolds. Its structure enables the study of structure-activity relationships in medicinal chemistry and materials science.
Building Block for Advanced Materials
Can be employed in the development of functional materials, potentially including organic semiconductors or specialised polymers, owing to its conjugated system and reactive sites.
| Molecular weight | 232.26 |
|---|---|
| Empirical formula | C12H8O3S |
| Assay | 97% |
| Melting point | 284-290 °C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| 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-(5-Formyl-2-thienyl)benzoic acid primarily used for?
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This compound is primarily used as a building block in organic synthesis and for research in heterocyclic chemistry, enabling the creation of more complex molecules.
What is the CAS number and molecular formula for 4-(5-Formyl-2-thienyl)benzoic acid?
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The CAS number is 174623-07-5 and the molecular formula is C12H8O3S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound with an assay of 97%. We do not represent it as USP, BP, or EP grade.
How should 4-(5-Formyl-2-thienyl)benzoic acid be handled?
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It is classified as a Warning with hazards H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Handle in a well-ventilated area, wear appropriate protective gloves and eye protection, and avoid breathing dust. In case of contact with eyes, rinse cautiously with water for several minutes.
Is this chemical controlled or scheduled?
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The provided data does not indicate that this chemical is controlled or scheduled.
How is this product packed, shipped, and exported?
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Tech Serve Solutions handles packaging and shipping with professional care, adhering to all relevant regulations for export. Specifics can be discussed upon inquiry.
How can I request a sample or quote for 4-(5-Formyl-2-thienyl)benzoic acid?
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Please contact our sales team directly via our website or listed contact information to request a sample or a formal quotation.
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