Description

2,2'-Bithiophene-5-Carboxaldehyde is a high-purity organic building block and key synthetic intermediate featuring a reactive aldehyde group on a bithiophene backbone. This compound matters for its crucial role in the synthesis of advanced conjugated materials, particularly in the field of organic electronics. It is primarily needed by R&D chemists and manufacturers in the pharmaceutical, agrochemical, and material science sectors for creating novel compounds and functional polymers.

Application

• Organic Semiconductor Precursor: A critical monomer for synthesizing conjugated polymers and small molecules used in Organic Field-Effect Transistors (OFETs), Organic Light-Emitting Diodes (OLEDs), and Organic Photovoltaics (OPVs).
• Pharmaceutical Intermediate: Serves as a versatile building block in medicinal chemistry for the development of new drug candidates, particularly those targeting neurological and anti-inflammatory pathways.
• Agrochemical Synthesis: Used in the research and production of novel pesticides and herbicides, leveraging the thiophene moiety for bioactive compound design.
• Chemical Sensor Development: Employed in the fabrication of sensitive layers for chemical and biological sensors due to its electron-rich and planar structure.
• Ligand and Catalyst Design: Acts as a starting material for creating sophisticated ligands used in catalysis and coordination chemistry.
• Nonlinear Optical Materials: Investigated for use in the development of materials with nonlinear optical (NLO) properties for photonic applications.

Basic Information

Product Name	2,2'-Bithiophene-5-Carboxaldehyde
CAS No.	3779-27-9
Molecular Formula	C9H6OS2
Molecular Weight	194.27 g/mol
Synonyms	5-Formyl-2,2'-bithiophene; 2,2'-Bithienyl-5-carboxaldehyde; 5-(2-Thienyl)thiophene-2-carboxaldehyde; 2,2'-Bithiophene-5-aldehyde; [2,2'-Bithiophene]-5-carboxaldehyde; 5-Carboxyaldehyde-2,2'-bithiophene; 5-(2-Thienyl)-2-thiophenecarboxaldehyde; 5-Formyl-2,2'-dithiophene
EINECS	223-257-5

Quality Control

Our 2,2'-Bithiophene-5-Carboxaldehyde is produced under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and FTIR, to ensure high purity and batch-to-batch consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your quality assurance and regulatory needs.

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 compound is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline 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.