3-Methoxythiophene
- CAS NO.：17573-92-1
- Empirical Formula: C5H6OS
- Molecular Weight: 114.17
- MDL number: MFCD00043894
- EINECS: 000-000-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 23:31:31
What is 3-Methoxythiophene?
Chemical properties
Clear light brown liquid
The Uses of 3-Methoxythiophene
3-Methoxythiophene, is a heterocyclic building block used for the synthesis of more complex compounds containing Thiophene moiety. It can also be used for the preparation of novel thiophenyl-methylene-9H-fluorene-based low bandgap polymers.
Synthesis Reference(s)
Synthetic Communications, 20, p. 213, 1990 DOI: 10.1080/00397919008052285
General Description
3-Methoxythiophene is a thiophene. The intramolecular and intermolecular geometries of crystals of 3-methoxythiophene were studied. Spectroscopic studies of bipolarons derived from oligomerized 3-methoxythiophene in solution has been reported. The electropolymerization of 3-methoxythiophene on Pt and Fe electrodes in an aqueous micellar medium containing sodium dodecyl sulfate and 10-3M bithiophene has been reported. Thin polymer films of 3-methoxythiophene at the cathode in a direct current discharge have been prepared.
Properties of 3-Methoxythiophene
| 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 | n |
| Flash point: | 121 °F |
| storage temp. | Keep in dark place,Inert atmosphere,2-8°C |
| form | Liquid |
| color | Clear light brown |
| Sensitive | Air Sensitive |
| BRN | 106404 |
| CAS DataBase Reference | 17573-92-1(CAS DataBase Reference) |
| NIST Chemistry Reference | Thiophene, 3-methoxy-(17573-92-1) |
Safety information for 3-Methoxythiophene
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H226:Flammable liquids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P242:Use only non-sparking tools. P243:Take precautionary measures against static discharge. |
Computed Descriptors for 3-Methoxythiophene
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