Description

2,2'-Bithiophene-5-Carbonyl Chloride is a high-purity, reactive organic intermediate essential for advanced synthesis. This compound serves as a critical building block for constructing complex molecular architectures, particularly in materials science. It is primarily sought after by researchers and manufacturers in the pharmaceutical, agrochemical, and organic electronics sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), particularly those with thiophene-based scaffolds.
• Agrochemical Synthesis: Used in the development of advanced pesticides, herbicides, and fungicides where the bithiophene moiety imparts specific biological activity.
• Organic Electronic Materials: Fundamental building block for conjugated polymers and small molecules used in organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and field-effect transistors (OFETs).
• Ligand and Catalyst Development: Serves as a starting material for creating specialized ligands used in catalysis and metal-organic frameworks (MOFs).
• Chemical Research & Development: A versatile reagent in academic and industrial R&D for exploring new synthetic pathways and functional materials.
• Dye and Pigment Manufacturing: Intermediate in the production of specialized dyes and pigments with unique optical properties.

Basic Information

Product Name	2,2'-Bithiophene-5-Carbonyl Chloride
CAS No.	135887-26-2
Molecular Formula	C9H5ClOS2
Molecular Weight	228.72 g/mol
Synonyms	5-(Chlorocarbonyl)-2,2'-bithiophene; 2,2'-Bithiophene-5-carboxylic acid chloride; 5-Carboxy-2,2'-bithiophene chloride; [2,2'-Bithiophene]-5-carbonyl chloride; 2,2'-Bithienyl-5-carbonyl chloride; 5-(2-Thienyl)thiophene-2-carbonyl chloride; (2,2'-Bithiophen-5-yl)carbonyl chloride
EINECS	Contact for details

Quality Control

Our 2,2'-Bithiophene-5-Carbonyl Chloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and FTIR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, alcohols, and water.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 20 ppm

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