133327-40-9

Basic information

• Product Name: 4-amino-3-(3-chloro-phenylazo)-naphthalene-1-sulfonic acid
• CAS NO: 133327-40-9
• Molecular Weight: 361.809
• Mol File: 133327-40-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4-amino-3-(3-chloro-phenylazo)-naphthalene-1-sulfonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 4-amino-3-(3-chloro-phenylazo)-naphthalene-1-sulfonic acid(133327-40-9)
• EPA Substance Registry System: 4-amino-3-(3-chloro-phenylazo)-naphthalene-1-sulfonic acid(133327-40-9)

Safety Data

• Hazardous Substances Data: 133327-40-9(Hazardous Substances Data)

Upstream product

• 84-86-6 4-amino-1-naphthalenesufonic acid 
• 100-77-6 3-chlorobenzenediazonium chloride 

Relevant articles and documents

KINETICS AND MECHANISM OF THE AZO COUPLING REACTION OF 1-AMINONAPHTHALENE-4-SULFONIC ACID

Kinetics of the azo coupling reaction of 1-aminonaphthalene-4-sulfonic acid with nine substituted benzenediazonium chlorides was investigated at four temperatures.The results were processed in terms of the isokinetic relationship and of an isoparametric relationship with temperature and ? constant as independent variables.There is a great similarity to the coupling reaction of 1-hydroxynaphthalene-4-sulfonic acid; all the results are consistent with a cyclic transition state implying variable association of a water molecule.