5-Acetylthiophene-2-carboxylic acid
- CAS NO.：4066-41-5
- Empirical Formula: C7H6O3S
- Molecular Weight: 170.19
- MDL number: MFCD00055512
- EINECS: 609-857-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 03:58:37
What is 5-Acetylthiophene-2-carboxylic acid?
Description
5-Acetylthiophene-2-carboxylic acid is a light yellow crystal with good thermal and chemical stability. It can be dissolved in various organic solvents, such as ethanol, ether, and chloroform, making it easy to handle and process in chemical reactions. It can be used as a raw material to synthesize compounds such as 5-Ethylthiophene-2-carboxylic acid.
Chemical properties
cream to pale brown solid
The Uses of 5-Acetylthiophene-2-carboxylic acid
5-Acetylthiophene-2-carboxylic acid is a intermediate used in the preparation of various 2,5-disubstituted thiophenes.
Synthesis Reference(s)
Journal of Heterocyclic Chemistry, 3, p. 104, 1966 DOI: 10.1002/jhet.5570030127
Properties of 5-Acetylthiophene-2-carboxylic acid
| Melting point: | 210-212°C |
| Boiling point: | 385.2±27.0 °C(Predicted) |
| Density | 1.383 |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | soluble in Methanol |
| form | powder to crystal |
| pka | 2.95±0.10(Predicted) |
| color | White to Yellow |
| BRN | 128897 |
| InChI | InChI=1S/C7H6O3S/c1-4(8)5-2-3-6(11-5)7(9)10/h2-3H,1H3,(H,9,10) |
| CAS DataBase Reference | 4066-41-5(CAS DataBase Reference) |
Safety information for 5-Acetylthiophene-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 H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for 5-Acetylthiophene-2-carboxylic acid
| InChIKey | LIKIMWYKJUFVJP-UHFFFAOYSA-N |
| SMILES | C1(C(O)=O)SC(C(C)=O)=CC=1 |
5-Acetylthiophene-2-carboxylic acid manufacturer
Sainor Laboratories Pvt Ltd Unit III
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Phone:+91-9182033729
Whatsapp: +91-9666644167
product: 4066-41-5 98%
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