4320-29-0

Basic information

• Product Name: Azobenzene-4,4'-disulphonamide
• Synonyms: Azobenzene-4,4'-disulphonamide
• CAS NO: 4320-29-0
• Molecular Weight: 340.384
• Mol File: 4320-29-0.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: Azobenzene-4,4'-disulphonamide(CAS DataBase Reference)
• NIST Chemistry Reference: Azobenzene-4,4'-disulphonamide(4320-29-0)
• EPA Substance Registry System: Azobenzene-4,4'-disulphonamide(4320-29-0)

Safety Data

• Hazardous Substances Data: 4320-29-0(Hazardous Substances Data)

Upstream product

• 7664-93-9 sulfuric acid 
• 7722-84-1 dihydrogen peroxide 
• 63-74-1 sulfanilamide 
• 623-11-0 1-methyl-4-nitrosobenzene 
• 144-80-9 sulphaacetamide 
• 4392-55-6 hydrazobenzene-4,4'-disulfonamide 
• 6325-93-5 p-nitrobenzenesulfonamide 

Downstream Products

• 63-74-1 sulfanilamide 
• 116170-22-0 4,4'-azo-bis-benzenesulfonic acid bis-acetylamide 
• 38869-34-0 4,4'-azo-bis-benzenesulfonic acid bis-chloroamide; disodium-salt 
• 4392-55-6 hydrazobenzene-4,4'-disulfonamide 

Relevant articles and documents

Conversion of anilines into azobenzenes in acetic acid with perborate and Mo(VI): correlation of reactivities

Azobenzenes are extensively used to dye textiles and leather and by tuning the substituent in the ring, vivid colours are obtained. Here, we report preparation of a large number of azobenzenes in good yield from commercially available anilines using sodium perborate (SPB) and catalytic amount of Na2MoO4 under mild conditions. Glacial acetic acid is the solvent of choice and the aniline to azobenzene conversion is zero, first and first orders with respect to SPB, Na2MoO4 and aniline, respectively. Based on the kinetic orders, UV–visible spectra and cyclic voltammograms, the conversion mechanism has been suggested. The reaction rates of about 50 anilines at 20–50?°C and their energy and entropy of activation conform to the isokinetic or Exner relationship and compensation effect, respectively. However, the reaction rates, deduced by the so far adopted method, fail to comply with the Hammett correlation. The specific reaction rates of molecular anilines, obtained through a modified calculation, conform to the Hammett relationship. Thus, this work presents a convenient inexpensive non-hazardous method of preparation of a larger number of azobenzenes, and shows the requirement of modification in obtaining the true reaction rates of anilines in acetic acid and the validity of Hammett relationship in the conversion process, indicating operation of a common mechanism.

Mechanism of Electrochemical Oxidation of Sulphanilamide at Pyrolytic Graphite Electrode

The electrochemical oxidation of bacteriostatic drug, sulphanilamide, has been studied in H2SO4 media and in phosphate buffers of pH range 2.0-10.3.A single 2e, 2H+ voltammetric oxidation peak is observed.On the basis of voltammetric, coulometric and spectral behaviour, the rationalisation of observed products has been made.The various products isolated have not been observed earlier and are likely candidates for the metabolic oxidation of sulphanilamide.

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