Description

3-Undecylthieno[3,2-B]Thiophene-2-Carboxylic Acid is a high-purity, functionalized organic semiconductor building block. This compound is critical for the synthesis of advanced conjugated polymers and small molecules used in next-generation electronic devices. It is primarily sought by R&D chemists and material scientists in the organic electronics and specialty chemical sectors for developing high-performance materials.

Application

• Organic Semiconductor Synthesis: A key monomer for constructing p-type (hole-transport) conjugated polymers and small molecules.
• Organic Field-Effect Transistors (OFETs): Used to develop active layer materials to enhance charge carrier mobility and device stability.
• Organic Photovoltaics (OPVs / Solar Cells): Serves as a donor or acceptor building block in polymer solar cell active layers to improve power conversion efficiency.
• Organic Light-Emitting Diodes (OLEDs): Employed in the synthesis of emissive or charge-transport layers for display and lighting applications.
• Chemical Sensors: Functionalized to create sensitive layers for detecting specific gases or biological molecules.
• Advanced Material Research: A versatile intermediate for exploring new thiophene-based architectures with tailored electronic properties.

Basic Information

Product Name	3-Undecylthieno[3,2-B]Thiophene-2-Carboxylic Acid
CAS No.	950223-96-8
Molecular Formula	C20H28O2S2
Molecular Weight	364.56 g/mol
Synonyms	2-Thiophenecarboxylic acid, 3-undecylthieno[3,2-b]thiophene-2-yl-; 3-Undecylthieno[3,2-b]thiophene-2-carboxylic acid; TT-C11-COOH; Thieno[3,2-b]thiophene-2-carboxylic acid, 3-undecyl-; 950223-96-8
EINECS	Contact for details

Quality Control

Our 3-Undecylthieno[3,2-B]Thiophene-2-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the exacting standards required for electronic-grade materials. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is a strong acid/organic solvent and is light-sensitive (store away from light). Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents (GC)	Meets ICH guidelines

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