4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid
- CAS NO.：7712-05-2
- Empirical Formula: C7H6O2S2
- Molecular Weight: 186.25
- MDL number: MFCD20642620
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-06-15 22:31:22
![4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid Structural](https://img.chemicalbook.in/CAS/GIF/7712-05-2.gif)
What is 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid?
The Uses of 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid
4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid can be used as organic synthesis intermediates and pharmaceutical intermediates, mainly used in laboratory research and development processes and pharmaceutical and chemical production processes.
Synthesis
Compound 3 was dissolved in ethanol,Potassium hydroxide was added and refluxed at 78 ° C for 4 h,After cooling to room temperature (25 ° C), the reaction solution was extracted with IM HCl, extracted with ethyl acetate, dried over Mg2SO4 and dried to give the title compound 4 (92%).
Properties of 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid
| Melting point: | 240°C(lit.) |
| Boiling point: | 419.0±45.0 °C(Predicted) |
| Density | 1.551 |
| storage temp. | 2-8°C(protect from light) |
| form | powder to crystal |
| pka | 3.56±0.20(Predicted) |
| color | Light orange to Yellow to Green |
Safety information for 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid
| InChIKey | RBINIIIGSUWMLQ-UHFFFAOYSA-N |
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