3,4-Dimethoxythiophene
- CAS NO.：51792-34-8
- Empirical Formula: C6H8O2S
- Molecular Weight: 144.19
- MDL number: MFCD01096546
- EINECS: 628-711-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-03-05 13:14:27
What is 3,4-Dimethoxythiophene?
Chemical properties
Colorless to yellow to orange liquid
The Uses of 3,4-Dimethoxythiophene
3,4-Dimethoxythiophene is used as an electronic materials intermediate. It is used as a starting material in the synthesis of porphyrin dyad which is used to study photoinduced energy transfer.
The Uses of 3,4-Dimethoxythiophene
Building block in the synthesis of an N2S2-N4 porphyrin dyad used to study photoinduced energy transfer.
Synthesis Reference(s)
Journal of the American Chemical Society, 73, p. 2956, 1951 DOI: 10.1021/ja01150a525
General Description
3,4-Dimethoxythiophene (DMOT) is a monomer and a precursor which can be synthesized by ring closure reaction of 2,3-dimethoxy-1,3-butadiene and sulfur dichloride in hexane medium. It is an oligothiphene that is majorly used in the development of electroactive materials for organic electronics based applications.
Properties of 3,4-Dimethoxythiophene
| Boiling point: | 100-102 °C/10-11 mmHg |
| Density | 1.209 g/mL at 25 °C |
| refractive index | 1.5409 |
| Flash point: | 224 ºF |
| storage temp. | -20°C |
| form | powder to lump to clear liquid |
| color | White or Colorless to Yellow |
| Water Solubility | Miscible with organic solvents. Slightly miscible with water. |
| CAS DataBase Reference | 51792-34-8(CAS DataBase Reference) |
Safety information for 3,4-Dimethoxythiophene
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P501:Dispose of contents/container to..… |
Computed Descriptors for 3,4-Dimethoxythiophene
New Products
4-Nitrobenzoic acid p-Tolualdehyde 4-Chlorobenzaldehyde 2-Fluorobenzaldehyde Diethylene glycol monomethyl ether 3-Chlorobenzaldehyde N5-(2-aminoethyl)pyridine-2,5-diamine hydrochloride Ornidazole EP impurity C N-Nitroso Desloratadine Domperidone Impurity Valsartan Desalkyl Clomiphene benzophenone analog 3-(2-Chloroacetyl)pyridine hydrochloride 5,7-Dichloro-3H-Imidazo(4,5b)Pyridine 4-Piperidinecarboxylic Acid Ethyl Ester 2-Chloro-3-Fluoro-4-Iodopyridine 5-Amino-2,4-dichloropyridine 3,5-Dibromo-2-NitropyridineRelated products of tetrahydrofuran
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