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668257

Sigma-Aldrich

3,4-Dimethoxythiophene

97%

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About This Item

Empirical Formula (Hill Notation):
C6H8O2S
CAS Number:
51792-34-8
Molecular Weight:
144.19
MDL number:
MFCD01096546
UNSPSC Code:
12352103
PubChem Substance ID:
24884971
NACRES:
NA.23

Assay

97%

refractive index

n20/D 1.5409

bp

100-102 °C/10-11 mmHg

density

1.209 g/mL at 25 °C

storage temp.

−20°C

SMILES string

COc1cscc1OC

InChI

1S/C6H8O2S/c1-7-5-3-9-4-6(5)8-2/h3-4H,1-2H3

InChI key

ZUDCKLVMBAXBIF-UHFFFAOYSA-N

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.

Application

Building block in the synthesis of an N2S2-N4 porphyrin dyad used to study photoinduced energy transfer.
DMOT can be trans-esterified to form 3,4-ethylenendioxythiophene (EDOT). It can further be polymerized to produce PEDOT which can be used as a conductive polymer in π-conjugated systems. It can be polymerized to form poly(dimethoxythiphenes) which can potentially be used in the fabrication energy storage devices on electrochemical doping.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P264 - P270 - P301 + P312 - P501

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

224.1 °F - closed cup

Flash Point(C)

106.7 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Thieno [3, 4-b]-1, 4-oxathiane: An Unsymmetrical Sulfur Analogue of 3, 4-Ethylenedioxythiophene (EDOT) as a Building Block for Linear pi-Conjugated Systems.
Blanchard P, et al.
Organic Letters, 4(4), 607-609 (2002)
Revisiting the electropolymerization of 3, 4-dimethoxythiophene in organic and micellar media.
Fall M, et al.
Synthetic Metals, 123(3), 365-372 (2001)
Biomimetic Synthesis of Water Soluble Conductive Polypyrrole and Poly (3, 4 ethylenedioxythiophene).
Bruno FF, et al.
MRS Online Proceedings Library, 736(4), 607-609 (2002)
Simple one-step synthesis of 3,4-dimethoxythiophene and its conversion into 3, 4-ethylenedioxythiophene (EDOT).
von Kieseritzky F, et al.
Tetrahedron Letters, 45(31), 6049-6050 (2004)
In situ conductance studies of p-and n-doping of poly (3, 4-dialkoxythiophenes).
Skompska M, et al.
Journal of Electroanalytical Chemistry, 577(1), 9-17 (2005)
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