Description

2-Thiophenecarboxylic Acid, 5-(Chloroacetyl)-, Methyl Ester (9Ci) is a high-purity, functionalized thiophene derivative designed for advanced chemical synthesis. This compound serves as a critical versatile building block in the development of complex molecules, particularly in pharmaceutical and agrochemical research. It is essential for chemists and R&D teams in the fine chemical, pharmaceutical, and material science industries who require reliable, high-quality intermediates for creating novel active ingredients and functional materials.

Application

This specialized thiophene ester is a key intermediate in several high-value chemical synthesis pathways. Its primary applications include:

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides and herbicides, leveraging its heterocyclic structure for biological activity.
• Material Science Research: Acts as a monomer or functionalizing agent in the development of conductive polymers and advanced organic electronic materials.
• Organic Synthesis Building Block: Employed in complex multi-step syntheses, including cross-coupling reactions and the construction of fused heterocyclic systems.
• Chemical Research & Development: Provides a versatile scaffold for medicinal chemistry and process chemistry optimization in both academic and industrial settings.

Basic Information

Product Name	2-Thiophenecarboxylic Acid, 5-(Chloroacetyl)-, Methyl Ester (9Ci)
CAS No.	96543-78-1
Molecular Formula	C8H7ClO3S
Molecular Weight	218.66 g/mol
Synonyms	Methyl 5-(chloroacetyl)thiophene-2-carboxylate; 5-(Chloroacetyl)-2-thiophenecarboxylic Acid Methyl Ester; Methyl 5-Chloroacetyl-2-thiophenecarboxylate; 2-Thiophenecarboxylic acid, 5-(chloroacetyl)-, methyl ester; 96543-78-1; Methyl (5-chloroacetyl)thiophene-2-carboxylate
EINECS	Contact for details

Quality Control

Our production of 2-Thiophenecarboxylic Acid, 5-(Chloroacetyl)-, Methyl Ester (9Ci) adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance as a synthesis intermediate. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. This material may be light-sensitive; prolonged exposure to light should be avoided.

Specification

Item	Specification
Appearance	White to off-white 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.