6602-56-8

Basic information

• Product Name: 2-CHLOROPYRIDINE-3-SULFONIC ACID
• Synonyms: 2-CHLOROPYRIDINE-3-SULFONIC ACID;2-Chloropyridine-3-sulphonic acid;2-Chloro-3-pyridinesulfonic acid
• CAS NO: 6602-56-8
• Molecular Formula: C₅H₄ClNO₃S
• Molecular Weight: 193.61
• Product Categories: Pyridines
• Mol File: 6602-56-8.mol
• Article Data: 2

Chemical Properties

• Melting Point: 276-280℃
• Appearance: /
• Density: 1.649
• Refractive Index: 1.592
• CAS DataBase Reference: 2-CHLOROPYRIDINE-3-SULFONIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: 2-CHLOROPYRIDINE-3-SULFONIC ACID(6602-56-8)
• EPA Substance Registry System: 2-CHLOROPYRIDINE-3-SULFONIC ACID(6602-56-8)

Safety Data

• Hazardous Substances Data: 6602-56-8(Hazardous Substances Data)

Usage

General Description

2-Chloropyridine-3-sulfonic acid is a chemical compound with the molecular formula C5H4ClNO3S. It is a sulfonic acid derivative of pyridine, and it is commonly used in the synthesis of pharmaceuticals, agrochemicals, and other organic compounds. The presence of the chloro group makes it a reactive compound, capable of undergoing various chemical reactions, including substitution and addition reactions. It is also a useful intermediate in the production of dyes, pigments, and other specialty chemicals. Overall, 2-Chloropyridine-3-sulfonic acid is a versatile and valuable chemical that finds applications in various industries.

InChI:InChI=1/C5H4ClNO3S/c6-5-4(11(8,9)10)2-1-3-7-5/h1-3H,(H,8,9,10)

Upstream product

• 6298-19-7 2-chloro-3-aminopyridine 

Downstream Products

• 38025-93-3 2-chloro-3-pyridinylsulfonamide 
• 38030-49-8 2-(4-methyl-piperazin-1-yl)-pyridine-3-sulfonic acid amide 

Relevant articles and documents

Preparation method of aromatic sulfonic acid compound

The invention discloses a preparation method of an aromatic sulfonic acid compound, and aims to provide the preparation method of the aromatic sulfonic acid compound, wherein the method is simple in process, low in equipment requirements, high in capacity, wide in raw material sources and small in environmental influence. The method is characterized by comprising the steps: with a starting material aromatic amine compound, dissolving in an acid, carrying out a diazotization reaction with sodium nitrite to prepare a diazocompound; carrying out a reaction of a catalyst cuprous salt with a thionyl chloride aqueous solution, and carrying out a sulfonylation reaction with the prepared diazocompound to obtain an aromatic sulfonyl chloride compound or an aromatic sulfonyl chloride hydrochloride compound, next hydrolyzing to obtain a crude product aromatic sulfonic acid compound, finally purifying through a beating way by an acidic solvent and an alcohol solution, and thus obtaining the high-purity aromatic sulfonic acid compound. The method is friendly to environment, has certain cost advantages, avoids use of more expensive aromatic thiol compounds as starting materials, and is beneficial for industrial production.