Description

Ethyl 6-Chloro-3,4-Dimethylthieno[2,3-B]Pyridine-2-Carboxylate is a high-value, multi-functional heterocyclic building block essential for advanced organic synthesis. This compound serves as a critical intermediate in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals, where its unique fused-ring structure enables the creation of complex molecular architectures. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for process development and scale-up.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly in therapeutic areas requiring complex heterocyclic cores.
• Agrochemical Synthesis: Used in the research and development of next-generation pesticides and herbicides, leveraging its thienopyridine scaffold.
• Material Science Research: Serves as a building block for creating organic electronic materials, such as semiconductors or light-emitting compounds.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying biological pathways and target engagement.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom synthesis projects and contract research organizations (CROs/CMOs).
• Academic & Industrial R&D: Fundamental for methodological development and exploring new chemical reactions in academic and industrial laboratories.

Basic Information

Product Name	Ethyl 6-Chloro-3,4-Dimethylthieno[2,3-B]Pyridine-2-Carboxylate
CAS No.	923738-50-5
Molecular Formula	C13H14ClNO2S
Molecular Weight	283.77 g/mol
Synonyms	6-Chloro-3,4-dimethylthieno[2,3-b]pyridine-2-carboxylic acid ethyl ester; Ethyl 6-chloro-3,4-dimethylthieno[2,3-b]pyridine-2-carboxylate; 923738-50-5; Thieno[2,3-b]pyridine-2-carboxylic acid, 6-chloro-3,4-dimethyl-, ethyl ester; Ethyl 6-chloro-3,4-dimethylthieno[2,3-b]pyridine-2-carboxylate (CAS 923738-50-5)
EINECS	Contact for details

Quality Control

Our Ethyl 6-Chloro-3,4-Dimethylthieno[2,3-B]Pyridine-2-Carboxylate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to confirm identity and purity. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all critical quality attributes. We support development and commercial projects with specifications that can meet cGMP and other relevant regulatory guidelines as required.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from strong bases and incompatible organic solvents. For long-term storage, consider inert atmosphere conditions to maximize stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
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.