3-Methyl-2-thiophenecarboxylic acid
- CAS NO.：23806-24-8
- Empirical Formula: C6H6O2S
- Molecular Weight: 142.18
- MDL number: MFCD00005438
- EINECS: 245-894-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:13:19
What is 3-Methyl-2-thiophenecarboxylic acid?
Chemical properties
white to light yellow crystal powder
Synthesis Reference(s)
The Journal of Organic Chemistry, 28, p. 914, 1963 DOI: 10.1021/jo01039a008
Tetrahedron Letters, 26, p. 1777, 1985 DOI: 10.1016/S0040-4039(00)98336-9
General Description
3-Methyl-2-thiophenecarboxylic acid has been used in the synthesis of zinc and cadmium carboxylate complexes.
Properties of 3-Methyl-2-thiophenecarboxylic acid
| Melting point: | 147-149 °C(lit.) |
| Boiling point: | 229.75°C (rough estimate) |
| Density | 1.365 (estimate) |
| refractive index | 1.5300 (estimate) |
| storage temp. | 2-8°C(protect from light) |
| form | solid |
| pka | 3.68±0.10(Predicted) |
| color | White to Light yellow to Light orange |
| BRN | 116184 |
| CAS DataBase Reference | 23806-24-8(CAS DataBase Reference) |
| NIST Chemistry Reference | 3-Methyl-2-thiophenecarboxylic acid(23806-24-8) |
Safety information for 3-Methyl-2-thiophenecarboxylic 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. 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 3-Methyl-2-thiophenecarboxylic acid
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