72720-17-3

Basic information

• Product Name: 4-(4-Dimethylamino-phenylazo)-N-propyl-benzenesulfonamide
• Synonyms: 4-(4-Dimethylamino-phenylazo)-N-propyl-benzenesulfonamide
• CAS NO: 72720-17-3
• Molecular Weight: 346.453
• Mol File: 72720-17-3.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 4-(4-Dimethylamino-phenylazo)-N-propyl-benzenesulfonamide(CAS DataBase Reference)
• NIST Chemistry Reference: 4-(4-Dimethylamino-phenylazo)-N-propyl-benzenesulfonamide(72720-17-3)
• EPA Substance Registry System: 4-(4-Dimethylamino-phenylazo)-N-propyl-benzenesulfonamide(72720-17-3)

Safety Data

• Hazardous Substances Data: 72720-17-3(Hazardous Substances Data)

Upstream product

• 107-10-8 propylamine 
• 56512-49-3 dabsyl chloride 

Relevant articles and documents

Discovery and characterization of catalysts for azide-alkyne cycloaddition by fluorescence quenching

Copper-based catalysts for the 1,3-dipolar cycloaddition of azides and alkynes were screened in parallel fashion using a fluorescence quenching assay. The method was designed to identify systems able to accelerate the coupling of reactants at micromolar concentrations in aqueous mixtures and to obtain quantitative comparisons of their activities. In addition to the tris(triazolylamines) previously reported, two types of compounds (bipy/phen and 2-pyridyl Schiff bases) were found to exhibit significant ligand-accelerated catalysis, with one complex showing especially dramatic rate enhancements. Preliminary explorations of the dependence of reaction rate on pH, ligand:Cu ratio, and Cu concentration are described. Copyright

Photoactivity and pH sensitivity of methyl orange functionalized poly(propyleneamine) dendrimers

For the first time a pH indicator that responds to two different external stimuli, i.e. pH and light, namely methyl orange, has been implemented in a dendrimer. Six generations (G0-G5) of methyl orange-functionalized poly(propyleneamine) dendrimers ( MO dendrimers ) have been synthesized and characterized using 1H NMR, 13C NMR, and MALDI-TOF mass spectrometry. Subsequently, the response of the MO dendrimers toward pH changes has been monitored using UV-vis spectroscopy and the photophysical properties have been investigated. Furthermore, the photoisomerization from E to Z and the thermal recovery from Z to E, have been studied using UV-vis and transient-absorption spectroscopy. Interestingly, the response of the MO units toward pH changes is found to be generation dependent. On the other hand, the photophysical properties are found to be similar for all generations, except for the ε value, which deviates significantly from the expected value in the case of G4 and G5. Also the isomerization processes show no generation dependence within the same solvent, but different rate constants for the Z/E isomerization have been observed for different solvents.

High performance liquid chromatographic determination of naturally occurring primary and secondary amines with dabsyl chloride.

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