|   | |
| Names | |
|---|---|
| Preferred IUPAC name (Thiophen-3-yl)acetic acid | |
| Other names 3-TAA, Thiophen-3-yl-acetic acid | |
| Identifiers | |
| 3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.027.424 | 
| EC Number | 
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|  PubChem CID | |
| UNII | |
|  CompTox Dashboard (EPA) | |
| 
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| 
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| Properties | |
| C6H6O2S | |
| Molar mass | 142.18 g/mol | 
| Appearance | colorless or white solid | 
| Density | 1.336 g/cm3 | 
| Melting point | 79–80 °C (174–176 °F; 352–353 K) | 
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Thiophene-3-acetic acid is an organosulfur compound with the formula HO2CCH2C4H3S. It is a white solid. It is one of two isomers of thiophene acetic acid, the other being thiophene-2-acetic acid.
Thiophene-3-acetic acid has attracted attention as a precursor to functionalized derivatives of polythiophene. [1]