Description

2-Chloropyridine-3-Sulfonic Acid is a versatile and high-value heterocyclic building block, primarily recognized for its dual functionality as a chlorinated pyridine derivative and a sulfonic acid. This compound is critical for facilitating complex molecular transformations in advanced synthetic chemistry, enabling the creation of novel compounds with tailored properties. It is an essential intermediate for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries who require precise and reliable synthetic pathways.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting the central nervous system and anti-infective agents.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and insecticides, leveraging its pyridine core for bioactivity.
• Ligand and Catalyst Development: Serves as a starting material for creating sophisticated ligands used in metal-catalyzed cross-coupling reactions and other catalytic processes.
• Functional Material Production: Employed in the synthesis of dyes, pigments, and electronic chemicals where the sulfonic acid group imparts solubility or ionic character.
• Chemical Research & Development: A valuable reagent for medicinal chemistry and process chemistry for exploring new synthetic routes and molecular scaffolds.
• Complex Molecule Derivatization: Facilitates the introduction of both chlorine and sulfonate groups into target molecules for further functionalization.

Basic Information

Product Name	2-Chloropyridine-3-Sulfonic Acid
CAS No.	6602-56-8
Molecular Formula	C5H4ClNO3S
Molecular Weight	193.61 g/mol
Synonyms	3-Pyridinesulfonic acid, 2-chloro-; 2-Chloro-3-pyridinesulfonic acid; 2-Chloro-3-sulfopyridine; 2-Chloropyridine-3-sulfonate; 2-Chloro-3-pyridylsulfonic acid; 2-Chloro-3-sulfonic acid pyridine; 2-Chloropyridin-3-ylsulfonic acid
EINECS	Contact for details

Quality Control

Our 2-Chloropyridine-3-Sulfonic Acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and batch-to-batch consistency.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
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.