2-Methylthiophene
Pharmaceutical Materials 2025-03-03
CAS Number: 554-14-3
Molecular Formula: C5H6S
Molecular Weight: 98.17 g/mol
Appearance: Colorless or slightly yellow liquid
Melting Point: -63°C
Boiling Point: 113°C
Density: 1.014 g/mL at 25°C
Usage: Used as a flavoring agent and in organic synthesis.
| Aspect |
Details |
| Name |
2-Methylthiophene |
| Common Synonyms |
2-Thienylmethane, Thiophen-2-methyl |
| CAS No. |
5188-73-2 |
| Molecular Formula |
C₅H₆S |
| Molecular Weight |
98.17 g/mol |
| Physical Properties |
- Appearance: Colorless to pale yellow liquid
- Boiling Point: 113-115 °C
- Melting Point: -85 °C
- Solubility: Insoluble in water; soluble in organic solvents (e.g., ethanol, ether)
- Density: 1.04 g/cm³
|
| Chemical Properties |
- Contains a methyl group (-CH₃) and a thiophene ring (five-membered heterocycle with sulfur)
- Exhibits electrophilic substitution reactivity due to the electron-rich nature of the thiophene ring
- Undergoes oxidation to form sulfoxides or sulfones under suitable conditions
- Stable under normal conditions but may polymerize in the presence of strong acids or radicals
|
| Applications |
- Used as an intermediate in pharmaceutical synthesis (e.g., antiviral and antifungal agents)
- Employed in agrochemicals as a building block for herbicides and insecticides
- Utilized in the production of conductive polymers and specialty chemicals
|
| Safety Information |
- GHS Hazards: H226 (flammable liquid and vapor), H315 (causes skin irritation)
- Precautionary Measures: Avoid open flames and heat sources; use PPE
- Storage: Keep in a tightly sealed container in a cool, well-ventilated area
|
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