Description

Thieno[3,2-B]Thiophene-3-Carboxylic Acid is a high-purity, multifunctional heterocyclic building block essential for advanced organic synthesis. Its fused thiophene-thiophene core structure makes it a valuable precursor for developing novel materials with unique electronic and optical properties. This compound is primarily sought by researchers and manufacturers in the pharmaceutical, agrochemical, and organic electronics sectors for creating complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key synthon for the development of new active pharmaceutical ingredients (APIs), particularly in areas requiring complex heterocyclic scaffolds.
• Organic Semiconductor Precursor: Serves as a fundamental building block for synthesizing novel conjugated polymers and small molecules used in organic field-effect transistors (OFETs) and organic photovoltaics (OPVs).
• Agrochemical Research: Used in the synthesis of new generation herbicides, fungicides, and insecticides that leverage its unique heterocyclic structure.
• Material Science & Dyes: Employed in the creation of advanced functional materials, including organic light-emitting diodes (OLEDs) and specialized dyes or pigments.
• Ligand Synthesis in Catalysis: Acts as a starting material for constructing sophisticated ligands used in transition metal catalysis for asymmetric synthesis.

Basic Information

Product Name	Thieno[3,2-B]Thiophene-3-Carboxylic Acid
CAS No.	1467663-02-0
Molecular Formula	C7H4O2S2
Molecular Weight	184.23 g/mol
Synonyms	3-Thieno[3,2-b]thiophenecarboxylic acid; Thieno[3,2-b]thiophene-3-carboxylic acid; 3-Carboxythieno[3,2-b]thiophene; TTCA; 1467663-02-0; Thienothiophene-3-carboxylic acid
EINECS	Contact for details

Quality Control

Our Thieno[3,2-B]Thiophene-3-Carboxylic Acid is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for every batch, detailing key parameters such as identity, assay, and impurity profiles. Our quality management system is designed to meet the stringent requirements of research and development as well as scale-up production.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed to minimize exposure to atmospheric moisture and light to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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