78846-76-1

Basic information

• Product Name: Benzenesulfonic acid, 2-chloro-4-nitro-
• CAS NO: 78846-76-1
• Molecular Formula: C6H4ClNO5S
• Molecular Weight: 237.62
• Mol File: 78846-76-1.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Benzenesulfonic acid, 2-chloro-4-nitro-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzenesulfonic acid, 2-chloro-4-nitro-(78846-76-1)
• EPA Substance Registry System: Benzenesulfonic acid, 2-chloro-4-nitro-(78846-76-1)

Safety Data

• Hazardous Substances Data: 78846-76-1(Hazardous Substances Data)

Upstream product

• 54-31-9 4-chloro-2-furfurylamino-5-sulfamoyl-benzoic acid 
• 71-43-2 benzene 
• 98-11-3 benzenesulfonic acid 
• 27886-58-4 chlorobenzene-2-sulfonic acid 

Downstream Products

• 138-42-1 p-nitrobenzenesulfonic acid 

Relevant articles and documents

Method for synthesizing p-nitrobenzenesulfonic

The invention relates to a method for synthesizing p-nitrobenzenesulfonic and belongs to the technical field of organic chemical synthesis. The method comprises the steps of subjecting benzene serving as the raw material and sulfuric acid to sulfonation to obtain benzenesulfonic acid; pumping chlorine into benzenesulfonic acid, adding deionized water and zinc dibutyl dithiocaarbamate, and stirring the mixture; adding nitric acid and acetic anhydride into the mixture for water-bath heating, and then performing cooling through ice water; slowly adding a sodium hydroxide solution dropwise into the cooled mixture, performing heating reflux after dropping reaction, cooling the mixture to the room temperature, and obtaining p-nitrobenzenesulfonic through separation, recovery and drying. The method has the advantages that the reaction time is shortened by 30% of time needed by a 3-nitrobenzene acid synthesis method, pollution cannot be produced during reaction, and operation steps are simple.