3-Methoxythiophene CAS#17573-92-1
Versatile Industrial Intermediate: Widely used as a valuable intermediate in the production of agrochemicals, pharmaceuticals, and fragrance compounds.
Broad Application Potential: Suitable for multiple industries, including pesticide manufacturing, pharmaceutical synthesis, and flavor and fragrance development.
Convenient Liquid Form: Supplied as a transparent light brown liquid, facilitating handling, storage, and incorporation into chemical processes.
Well-Defined Physical Properties: Features consistent physical characteristics, including a molecular formula of C₅H₆OS, molecular weight of 114.17, and controlled melting and boiling points, supporting reliable processing and quality control.
Product Description of 3-Methoxythiophene
3-Methoxythiophene is an organic compound with the molecular formula C₅H₆OS and a molecular weight of 114.17. It appears as a transparent, light brown liquid with a melting point of 49–50°C (from ethyl ether/ligroine) and a boiling point of 80–82°C at 65 mmHg. The compound is widely used in the manufacture of pesticides, pharmaceuticals, and fragrance products.
3-Methoxythiophene Chemical Properties
| Melting point | 49-50 °C(Solv: ethyl ether (60-29-7); ligroine (8032-32-4)) |
| Boiling point | 80-82 °C/65 mmHg (lit.) |
| density | 1.143 g/mL at 25 °C (lit.) |
| refractive index | n20/D 1.532(lit.) |
| Fp | 121 °F |
| storage temp. | Keep in dark place,Inert atmosphere,2-8°C |
| form | Liquid |
| color | Clear light brown |
| Sensitive | Air Sensitive |
| BRN | 106404 |
| LogP | 1.810 (est) |
| CAS DataBase Reference | 17573-92-1(CAS DataBase Reference) |
| NIST Chemistry Reference | Thiophene, 3-methoxy-(17573-92-1) |
| Risk Statements | 10 |
| Safety Statements | 16-27-36/37/39 |
| RIDADR | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| F | 13 |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29339900 |
Product Application of 3-Methoxythiophene CAS#17573-92-1
3-Methoxythiophene is an important intermediate in organic synthesis and is widely used in the production of agrochemicals, pharmaceuticals, fragrances, and related products. It is also utilized in the synthesis of NSK-850, a high-performance herbicide for paddy field applications.




