Description

Ethyl 2-Chlorothiophene-5-Glyoxylate is a high-purity organic building block and a key synthetic intermediate. Its value lies in its functionalized thiophene core, which is essential for constructing complex molecules in advanced chemical synthesis. This compound is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: 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, herbicides, and fungicides, leveraging the bioactivity of the thiophene moiety.
• Material Science Research: Serves as a monomer or building block for developing conductive polymers, organic semiconductors, and other advanced electronic materials.
• Chemical Research & Development: Employed in academic and industrial labs for method development, catalysis studies, and the creation of complex heterocyclic compounds.
• Fine Chemical Production: Acts as a specialized intermediate in the custom synthesis of dyes, pigments, and other performance chemicals.

Basic Information

Product Name	Ethyl 2-Chlorothiophene-5-Glyoxylate
CAS No.	34036-28-7
Molecular Formula	C9H7ClO3S
Molecular Weight	230.67 g/mol
Synonyms	Ethyl 2-chloro-5-oxo-5H-thiophene-2-carboxylate; 2-Chlorothiophene-5-glyoxylic acid ethyl ester; Ethyl (2-chloro-5-thienyl)glyoxylate; 5-(Ethoxyoxalyl)-2-chlorothiophene; Ethyl 2-chloro-5-thiopheneglyoxylate; 2-Chloro-5-(ethoxycarbonylformyl)thiophene; Ethyl α-oxo-2-chlorothiophene-5-acetate
EINECS	Contact for details

Quality Control

Our Ethyl 2-Chlorothiophene-5-Glyoxylate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent batch-to-batch quality suitable for sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. This material is moisture-sensitive; keep the container tightly sealed in a dry environment.

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%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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