Description

2,2'-Bithiophene-5-Carboxylic Acid is a high-purity, functionalized bithiophene derivative serving as a critical building block in advanced material synthesis. Its value lies in its conjugated molecular structure and carboxylic acid functional group, which enable precise chemical modifications and integration into larger, complex systems. This compound is essential for researchers and manufacturers in the fields of organic electronics, pharmaceutical intermediates, and specialty polymer chemistry.

Application

• Organic Semiconductor Precursor: A key monomer for synthesizing conjugated polymers and small molecules used in Organic Field-Effect Transistors (OFETs), Organic Light-Emitting Diodes (OLEDs), and organic photovoltaic (OPV) cells.
• Pharmaceutical Intermediate: Used in the research and development of novel active pharmaceutical ingredients (APIs), particularly in compounds targeting neurological and anti-inflammatory pathways.
• Ligand Synthesis: Serves as a starting material for creating complex ligands in coordination chemistry and catalysis.
• Functional Material Research: Employed in the development of electrochromic materials, chemical sensors, and non-linear optical (NLO) materials due to its tunable electronic properties.
• Polymer Modification: The carboxylic acid group allows for grafting onto polymer backbones to impart specific electronic or binding characteristics.

Basic Information

Product Name	2,2'-Bithiophene-5-Carboxylic Acid
CAS No.	2060-55-1
Molecular Formula	C9H6O2S2
Molecular Weight	210.27 g/mol
Synonyms	5-Carboxy-2,2'-bithiophene; 2,2'-Bithienyl-5-carboxylic Acid; 5-(2-Thienyl)thiophene-2-carboxylic Acid; 2,2'-Dithiophene-5-carboxylic Acid; 2,2'-Bithiophene-5-carboxylic acid; [2,2'-Bithiophene]-5-carboxylic acid; 5-(Thiophen-2-yl)thiophene-2-carboxylic acid; 2-(2-Thienyl)thiophene-5-carboxylic Acid
EINECS	218-163-4

Quality Control

Our 2,2'-Bithiophene-5-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, 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 place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

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%
Heavy Metals	< 10 ppm

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