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CS-W001157 4
Total: USD 88.00

3,4-Ethylenedioxythiophene-2,5-dicarboxylic acid

  • CAS No. 18361-03-0

  • Cat. No. CS-0168020
  • Purity≥98%
  • MDL No.MFCD00966477
  • HazMat Fee +

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    The shipment is processed through FedEx Ground under the Limited Quantity option.

    Each bottle is packed as an Excepted Quantity, with a maximum of 1g for items in class 6.1 packing group I or II, and up to 25g for all other hazardous materials.

    If shipping is charged to your FedEx account, the HazMat fee will be billed directly by the courier. Otherwise, the fee will be included on your invoice. To help you avoid the HazMat fee, we can package a 5g order of a class 6.1 packing group I or II material as five separate 1g units, and a 100g order of any other dangerous good as four 25g units. This packaging adjustment will be made unless you instruct otherwise on your purchase order. Below, you will find the fee schedule from FedEx for handling hazardous materials.

    Type
    HazMat Fee
    Excepted Quantity $0.00
    FedEx Limited Quantities Ground $0.00
    Hazmat Ground shipping $50.00+
    Inaccessible (Haz class 6.1 or 9), Domestic $68.00+
    Accessible (Haz class 3, 4, 5 or 8), Domestic $158.00+
    Inaccessible (Haz class 6.1 or 9), International $108.00+
    Accessible (Haz class 3, 4, 5 or 8), International $238.00+

    An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

    There is a HazMat shipping fee for each item that qualifies as a dangerous good. Please contact our quotation team via email to confirm the details.

*For research and further manufacturing use only, not for direct human use.

3,4-Ethylenedioxythiophene-2,5-dicarboxylic acid|CS-0168020

Structure of 18361-03-0

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Description

3,4-Ethylenedioxythiophene-2,5-dicarboxylic acid features a rigid, electron-rich thiophene core flanked by two carboxylic acid groups, enabling robust conjugation and versatile functionalization. This structure supports integration into conductive polymers and redox-active materials with enhanced stability and processability under standard conditions.

Application

3,4-Ethylenedioxythiophene-2,5-dicarboxylic acid serves as a versatile building block for conjugated polymers and functional materials. Its rigid, electron-rich thiophene core with orthogonal carboxylic acid groups enables efficient coupling reactions, facilitating the synthesis of high-performance organic semiconductors and electrochromic devices. The molecule exhibits good bench stability and compatibility with standard amide and esterification protocols, supporting scalable, reproducible synthesis in industrial R&D workflows.

General Information

  • CAS No. 18361-03-0
  • Cat. No. CS-0168020
  • Purity ≥98%
  • MDL No. MFCD00966477
  • Storage Store at room temperature
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₈H₆O₆S
  • Molecular Weight None
  • Synonym(s) 2,3-Dihydrothieno[3,4-b]-1,4-dioxine-5,7-dicarboxylic Acid
  • SMILES O=C(C1=C2C(OCCO2)=C(C(O)=O)S1)O

Computational Chemistry Data

  • TPSA   93.06
  • LogP   0.9157
  • H_Acceptors   5
  • H_Donors   2
  • Rotatable_Bonds   2

Safety Information

Download SDS
GHS Pictogram :
GHS No : GHS07
Signal Word : Warning
UN#: N/A
Class : N/A
Packing Group : N/A
Hazard Statements : H302-H312-H315-H319-H332
Precautionary Statements : P264-P270-P273-P280-P302+P352-P330-P362+P364-P501

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