Description

2-Thiophenecarbonylchloride,3-Ethoxy-(9Ci) is a specialized organosulfur building block featuring a reactive acid chloride group and an ethoxy substituent on the thiophene ring. This compound is valued for its role as a key intermediate in the synthesis of complex molecules, particularly in pharmaceutical and agrochemical research. It is primarily sought by R&D chemists and process development scientists working on novel active ingredients, functional materials, and fine chemicals where the thiophene scaffold is integral to the desired properties.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of active pharmaceutical ingredients (APIs), especially those containing thiophene heterocycles for therapeutic applications.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides, where the thiophene moiety can enhance biological activity.
• Material Science Research: Serves as a monomer or building block for creating conductive polymers, organic semiconductors, and advanced functional materials.
• Ligand and Catalyst Development: Employed in the preparation of specialized ligands for metal catalysis and organocatalysts used in asymmetric synthesis.
• Fine Chemical Production: Acts as a versatile intermediate for manufacturing dyes, pigments, and other high-value specialty chemicals.

Basic Information

Product Name	2-Thiophenecarbonylchloride,3-Ethoxy-(9Ci)
CAS No.	139926-24-2
Molecular Formula	C7H7ClO2S
Molecular Weight	190.65 g/mol
Synonyms	3-Ethoxythiophene-2-carbonyl chloride; 3-Ethoxy-2-thiophenecarbonyl chloride; 2-Carbonylchloride-3-ethoxythiophene; 3-Ethoxythiophene-2-carboxylic acid chloride; 3-Ethoxy-2-thiophenecarboxylic acid chloride; 3-Ethoxy-2-thenoyl chloride
EINECS	Contact for details

Quality Control

Our production of 2-Thiophenecarbonylchloride,3-Ethoxy-(9Ci) adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for research and development applications. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We are committed to meeting the exacting standards required for advanced synthetic chemistry and can provide material tailored to specific project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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