Description

3-Chlorothieno[2,3-B]Pyridine-2-Carboxylic Acid is a high-purity, multi-functional heterocyclic building block essential for advanced organic synthesis. This compound is valued for its unique fused ring system, which serves as a critical scaffold in the development of novel active pharmaceutical ingredients (APIs) and functional materials. It is primarily sought after by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly for central nervous system (CNS) and anti-infective therapies.
• Agrochemical Research: Used as a core scaffold for developing new herbicides, fungicides, and insecticides with enhanced efficacy.
• Material Science: Serves as a building block for creating organic semiconductors, conductive polymers, and advanced organic light-emitting diodes (OLEDs).
• Chemical Biology: Employed in the design and synthesis of molecular probes and enzyme inhibitors for biochemical research.
• Custom Synthesis: A versatile starting material for contract research organizations (CROs) and CDMOs performing bespoke synthesis for clients.

Basic Information

Product Name	3-Chlorothieno[2,3-B]Pyridine-2-Carboxylic Acid
CAS No.	937640-24-9
Molecular Formula	C8H4ClNO2S
Molecular Weight	213.64 g/mol
Synonyms	3-Chlorothieno[2,3-b]pyridine-2-carboxylic acid; 2-Thiophenecarboxylic acid, 3-chlorothieno[2,3-b]pyridine-; 3-Chloro-2-thiophenecarboxylic acid, thieno[2,3-b]pyridine derivative; 937640-24-9; Thieno[2,3-b]pyridine-2-carboxylic acid, 3-chloro-; 3-Chlorothienopyridine-2-carboxylic Acid
EINECS	Contact for details

Quality Control

Every batch of 3-Chlorothieno[2,3-B]Pyridine-2-Carboxylic Acid is manufactured under strict quality management systems. Our products undergo rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is moisture-sensitive (hygroscopic); keep the container tightly sealed under an inert atmosphere when not in use to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.