Description

Ethyl 3-Chlorothieno[2,3-B]Pyridine-2-Carboxylate is a high-value heterocyclic building block and advanced pharmaceutical intermediate. This compound is critical for the synthesis of complex molecules, particularly in medicinal chemistry and drug discovery programs. It is primarily sought after by research institutions and fine chemical manufacturers developing novel active pharmaceutical ingredients (APIs) and agrochemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Research: Used in the development of new pesticides and herbicides, leveraging its unique fused-ring structure for biological activity.
• Material Science: Serves as a building block for creating specialized organic electronic materials and ligands for catalysis.
• Academic & Contract Research: Essential for medicinal chemistry research in academic laboratories and contract research organizations (CROs) for structure-activity relationship (SAR) studies.
• Custom Synthesis: Employed by fine chemical suppliers for the custom manufacturing of complex, high-value target molecules for clients.

Basic Information

Product Name	Ethyl 3-Chlorothieno[2,3-B]Pyridine-2-Carboxylate
CAS No.	66869-77-0
Molecular Formula	C10H8ClNO2S
Molecular Weight	241.69 g/mol
Synonyms	Ethyl 3-chlorothieno[2,3-b]pyridine-2-carboxylate; 3-Chlorothieno[2,3-b]pyridine-2-carboxylic acid ethyl ester; 2-Thiophenecarboxylic acid, 3-chlorothieno[2,3-b]pyridine-2-ethyl ester; 66869-77-0; Ethyl 3-chloro-4-azathieno[3,2-e]indole-2-carboxylate (alternative ring naming)
EINECS	Contact for details

Quality Control

Our Ethyl 3-Chlorothieno[2,3-B]Pyridine-2-Carboxylate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity, meeting the exacting standards required for research and development. We provide comprehensive Certificates of Analysis (COA) with each batch, detailing purity, identity, and impurity profiles. Our quality system supports compliance with cGMP and ISO standards for advanced intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). Keep the container tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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