Description

2,5-Dithieno[3,2-B]Thien-2-Yl-1,4- Benzenedicarboxylic Acid-1,4-Diethyl Ester is a high-purity, advanced organic intermediate characterized by its complex fused thiophene and benzoate structure. This compound matters for its role as a critical building block in the synthesis of novel organic semiconductors and functional materials. It is primarily needed by R&D chemists and process engineers in the organic electronics, photovoltaics, and specialty polymer industries.

Application

• Organic Semiconductor Precursor: A key monomer for synthesizing p-type semiconducting polymers used in Organic Field-Effect Transistors (OFETs).
• Photovoltaic Material Development: Serves as an electron-donor unit in the creation of novel small molecules or polymers for Organic Photovoltaic (OPV) cells.
• Electrochromic & Sensing Materials: Used in research for developing materials that change color with electrical stimulus or for chemical sensing applications.
• Non-Linear Optical (NLO) Materials: Investigated as a component in materials for photonics and optical signal processing due to its extended π-conjugation.
• Specialty Polymer Additive: Can be incorporated into polymer backbones to impart specific electronic or optical properties.
• Academic & Industrial R&D: A valuable tool for exploring structure-property relationships in conjugated materials and heterocyclic chemistry.

Basic Information

Product Name	2,5-Dithieno[3,2-B]Thien-2-Yl-1,4- Benzenedicarboxylic Acid-1,4-Diethyl Ester
CAS No.	1411976-67-4
Molecular Formula	C24H18O4S3
Molecular Weight	466.58 g/mol
Synonyms	1,4-Benzenedicarboxylic acid, 2,5-bis(2-thienyl)thieno[3,2-b]thien-2-yl-, 1,4-diethyl ester; Diethyl 2,5-bis(thieno[3,2-b]thiophen-2-yl)terephthalate; 2,5-Di(thieno[3,2-b]thiophen-2-yl)terephthalic acid diethyl ester; TTT-based diethyl terephthalate derivative; Dithienothienyl terephthalate diester; Advanced thiophene-based monomer; Conjugated organic building block CAS 1411976-67-4
EINECS	Contact for details

Quality Control

Our 2,5-Dithieno[3,2-B]Thien-2-Yl-1,4- Benzenedicarboxylic Acid-1,4-Diethyl Ester is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity for sensitive R&D and scale-up processes. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We support custom synthesis and can tailor specifications to meet specific research or pre-commercial project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The container should be kept in a well-ventilated area and protected from moisture. For long-term storage, consider under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residual Solvents (GC)	Meets ICH guidelines
Water Content (KF)	< 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.