Thiophene-3,4-dicarboxylic acid
- CAS NO.：4282-29-5
- Empirical Formula: C6H4O4S
- Molecular Weight: 172.16
- MDL number: MFCD00067079
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 03:36:32
What is Thiophene-3,4-dicarboxylic acid?
Chemical properties
yellow to beige-pinkish or light brown crystalline
The Uses of Thiophene-3,4-dicarboxylic acid
Thiophene-3,4-dicarboxylic Acid is used in preparation of dibromo thienofuran dione.
The Uses of Thiophene-3,4-dicarboxylic acid
Synthetic precursor for organic electronics materials.
Properties of Thiophene-3,4-dicarboxylic acid
| Melting point: | 227-231 °C |
| Boiling point: | 272.46°C (rough estimate) |
| Density | 1.473 (estimate) |
| refractive index | 1.5500 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | soluble in Methanol |
| pka | 3.36±0.20(Predicted) |
| form | Crystalline Powder |
| color | Yellow to beige-pinkish or light brown |
| λmax | 240nm(H2O)(lit.) |
Safety information for Thiophene-3,4-dicarboxylic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for Thiophene-3,4-dicarboxylic acid
| InChIKey | ZWWLLYJRPKYTDF-UHFFFAOYSA-N |
| SMILES | C1SC=C(C(O)=O)C=1C(O)=O |
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![TRIMETHYL 5-(BIS[(CYCLOHEXYLAMINO)CARBONYL]AMINO)-2,3,4-THIOPHENETRICARBOXYLATE](https://img.chemicalbook.in/StructureFile/ChemBookStructure4/GIF/CB9344075.gif)
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