3,4-Dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid

Name: 3,4-Dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 175202-55-8
Cat. No. CS-0153623
Molecule weight256.29
Purity≥98%
MDL No.MFCD00067989

HazMat Fee +

HazMat Fee

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, except in the following scenarios:

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-Dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid|CS-0153623

Structure of 175202-55-8

Size

Price

Quantity

* Please select Quantity before adding items.

General Information

CAS No. 175202-55-8
Cat. No. CS-0153623
Purity ≥98%
MDL No. MFCD00067989
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₁₀H₈O₄S₂
Molecular Weight 256.29
Synonym(s) 3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid
SMILES O=C(O)C=1SC=2SC(C(=O)O)=C(C2C1C)C

Description

This electron-rich heterocycle features two methyl groups flanking a fused thiophene core, enhancing solubility and stability. The dicarboxylic acid functionality enables straightforward derivatization for conjugated materials in organic electronics.

Application

3,4-Dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid serves as a versatile building block for conjugated heterocyclic systems, enabling access to functionalized π-electron-rich scaffolds. Its dicarboxylic acid functionality facilitates straightforward derivatization via esterification, amidation, or polymerization, while the sterically hindered 3,4-dimethyl substitution enhances bench stability and reduces undesired side reactions. The core structure supports applications in organic semiconductors and materials chemistry.

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-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

Quality Control

To search for quality control of cas , please enter both the product number and the lot/batch number.

Computational Chemistry Data

TPSA 74.6
LogP 2.97604
H_Acceptors 4
H_Donors 2
Rotatable_Bonds 2

Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Thiophene compounds

Material Science Metal Organic Frameworks Carboxylic MOFs Linkers

Material Science Organic-Inorganic Hybrid Materials Metal Organic Frameworks (MOF) Raw Materials Organic Linker Molecules

Material Science Polymer/Macromolecule Reagents Metal Organic Frameworks (MOF) Raw Materials Organic Linker Molecules

Key Words

175202-55-8 sigma175202-55-8 manufacturer175202-55-8 price175202-55-8 structure175202-55-8 SDSbuy 175202-55-8175202-55-8 supplier175202-55-8 uses175202-55-8 molecular weightprice of 175202-55-8175202-55-8 chemical name formula of 175202-55-8

Salutation:	*Country or Region:
*Applicant Name:	*Organization Name:
*Email Address:	Quantity:
CAS NO. :	Product Name:
Remarks:
Upload Pictures

CAS.No.		Product Name
Applicant Name *		Email Address *
Phone Number *		Organization Name*
Country or Region*		Quantity*
Remarks:

Product Name:
Cat. No.: .		CAS NO. :
Quantity:

3,4-Dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid

CAS No. 175202-55-8

Recommended Products