Description

Thieno[3,2-B]Thiophene-3-Carboxylic Acid is a high-purity, heterocyclic organic building block of significant interest in advanced material science and pharmaceutical research. Its fused thiophene-thiophene core structure makes it a valuable precursor for synthesizing complex conjugated molecules and functional polymers. This compound is primarily sought after by R&D chemists and process development scientists in the organic electronics and medicinal chemistry sectors for creating novel materials with tailored electronic properties.

Application

• Organic Semiconductor Synthesis: A key monomer for constructing donor-acceptor polymers and small molecules used in Organic Field-Effect Transistors (OFETs) and Organic Photovoltaics (OPVs).
• Pharmaceutical Intermediates: Serves as a sophisticated scaffold in the research and development of new active pharmaceutical ingredients (APIs), particularly for targeted therapies.
• Functional Material Development: Used in the design of electrochromic materials, sensors, and non-linear optical (NLO) materials due to its electron-rich and planar structure.
• Ligand and Catalyst Design: The carboxylic acid group allows for functionalization, making it useful for creating novel ligands in coordination chemistry and catalysis.
• Academic & Industrial R&D: A vital tool for exploratory chemistry in universities and corporate labs focused on next-generation electronic and bioactive compounds.

Basic Information

Product Name	Thieno[3,2-B]Thiophene-3-Carboxylic Acid
CAS No.	2055722-84-2
Molecular Formula	C7H4O2S2
Molecular Weight	184.23 g/mol
Synonyms	Thieno[3,2-b]thiophene-3-carboxylic acid; 3-Thieno[3,2-b]thiophenecarboxylic acid; TTCA; TTC-OH; 3-Carboxythieno[3,2-b]thiophene; Thieno(3,2-b)thiophene-3-carboxylic acid; 2055722-84-2; Thienothiophene carboxylic acid
EINECS	Contact for details

Quality Control

Our production of Thieno[3,2-B]Thiophene-3-Carboxylic Acid adheres to stringent in-process controls and final batch analysis to ensure consistent high purity and performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay (HPLC), identity (IR, NMR), and impurity profiles. Our quality system is designed to meet the exacting standards required for research and scale-up in fine chemical and electronic material applications.

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). The compound may be light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.