6973-13-3

Basic information

• Product Name: 2-chloro-5-nitrotoluene-4-sulphonic acid
• Synonyms: 2-chloro-5-nitrotoluene-4-sulphonic acid;3-Chloro-4-methyl-6-nitrobenzenesulfonic acid;5-Chloro-4-methyl-2-nitrobenzenesulfonic acid;6-Chloro-3-nitrotoluene-4-sulfonic acid;2-Chloro-5-nitro-1-toluene-4-sulfonic acid;2-Chloro-5-nitrotoluene-4-sulfonic acid;Benzenesulfonic acid, 5-chloro-4-methyl-2-nitro-;Einecs 230-216-2
• CAS NO: 6973-13-3
• Molecular Formula: C₇H₆ClNO₅S
• Molecular Weight: 251.64424
• EINECS: 230-216-2
• Mol File: 6973-13-3.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• Density: 1.652g/cm³
• Refractive Index: 1.607
• CAS DataBase Reference: 2-chloro-5-nitrotoluene-4-sulphonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 2-chloro-5-nitrotoluene-4-sulphonic acid(6973-13-3)
• EPA Substance Registry System: 2-chloro-5-nitrotoluene-4-sulphonic acid(6973-13-3)

Safety Data

• Hazardous Substances Data: 6973-13-3(Hazardous Substances Data)

Usage

General Description

2-Chloro-5-nitrotoluene-4-sulphonic acid is a chemical compound with the molecular formula C7H6ClNO5S. It is a derivative of toluene and contains a chlorine atom, a nitro group, and a sulfonic acid group attached to a phenyl ring. 2-chloro-5-nitrotoluene-4-sulphonic acid is used in the synthesis of pharmaceuticals, dyes, and pigments. It is also used as an intermediate in the production of agrochemicals and other fine chemicals. 2-Chloro-5-nitrotoluene-4-sulphonic acid is considered to be a hazardous substance and should be handled with care due to its potential toxicity and environmental impact.

InChI:InChI=1/C7H6ClNO5S/c1-4-2-6(9(10)11)7(3-5(4)8)15(12,13)14/h2-3H,1H3,(H,12,13,14)

Upstream product

• 98-34-0 3-chloro-4-methylbenzenesulfonic acid 
• 108-88-3 toluene 
• 104-15-4 toluene-4-sulfonic acid 
• 98-59-9 p-toluenesulfonyl chloride 
• 42413-03-6 3-chloro-4-methylbenzenesulfonyl chloride 
• 861560-18-1 2-chloro-5-nitro-toluene-4-sulfonyl chloride 

Downstream Products

• 88-53-9 5-amino-2-chloro-toluene-4-sulfonic acid 
• 7149-80-6 5-chloro-4-methyl-2-nitroaniline 

Relevant articles and documents

Pipeline method and device for preparing 2-nitro-5-chloro-4-toluenesulfonic acid

The invention discloses a pipeline method and device for preparing 2-nitro-5-chloro-4-toluenesulfonic acid. The device comprises a nitrogen dioxide steel cylinder, a storage tank, an ozone generator,a flow pump, a gas flowmeter, a cross mixed joint, a reaction pipeline passing through an alumina interior coating, a cooling system, a heating system, a back pressure valve and a receiving tank. Themethod comprises the following steps: turning on the cooling system and the heating system for preheating; turning on the ozone generator, setting ozone flow, and regulating the back pressure valve; setting the flow pump and the gas flowmeter; and mixing the raw materials, nitrogen dioxide and ozone via the cross mixed joint, enabling the mixture to enter the reaction pipeline passing through an alumina interior coating for carrying out a nitration reaction, and performing after-treatment on the reaction solution, thereby obtaining the 2-nitro-5-chloro-4-toluenesulfonic acid. According to themethod disclosed by the invention, the catalyst alumina is arranged in the pipeline in a coating form, the catalyst is uniformly arranged, the catalytic efficiency is high, the packing does not need to be removed, and the operation is simple and convenient.

Method for producing CLT acid nitride in continuous pipelization mode

The invention discloses a method for producing CLT acid nitride in a continuous pipelization mode. The method includes the following steps that 1, CLT acid sulphonate and chlorine gas are continuously introduced into a chloridizing pipeline reactor to be subjected to a chlorination reaction; 2, a chlorination reaction solution obtained in the step 1 and nitric acid are continuously introduced into a nitrating pipeline reactor to be subjected to a nitratlon reaction to obtain the CLT acid nitride. In the method, it is unnecessary to purify an intermediate in the reaction process, and the method is easy to operate, high in reaction efficiency and high in target product selectivity.