5-Methyl-2-thiophenecarboxylic acid
- CAS NO.：1918-79-2
- Empirical Formula: C6H6O2S
- Molecular Weight: 142.18
- MDL number: MFCD00005439
- EINECS: 217-640-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-08-27 20:28:20
What is 5-Methyl-2-thiophenecarboxylic acid?
Chemical properties
BEIGE CRYSTALLINE POWDER
Definition
ChEBI: 5-Methyl-2-thiophenecarboxylic acid is a thiophenecarboxylic acid.
Synthesis Reference(s)
Tetrahedron Letters, 15, p. 2373, 1974 DOI: 10.1016/S0040-4039(01)92259-2
Properties of 5-Methyl-2-thiophenecarboxylic acid
| Melting point: | 135-138 °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 | Liquid |
| pka | 3.71±0.10(Predicted) |
| color | Clear |
| BRN | 113857 |
| CAS DataBase Reference | 1918-79-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 5-Methyl-2-thiophenecarboxylic acid (keto form)(1918-79-2) |
Safety information for 5-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 5-Methyl-2-thiophenecarboxylic acid
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