122260-29-1Relevant articles and documents
Spectrophotometric Studies on Some 4-Hydroxy-5-arylazopyrazole-3-(N-Pyrid-2-yl)carboxamidein. Organic Solvents of Varying Polarities and in Buffer Solutions
Hanna, M. A.,Girges, M. M.,El-Hossini, M. S.,Sofan, M. A.
, p. 68 - 72 (2007/10/02)
A series of new 4-pyrazolone azodisperse dyes were prepared using Hansa Yellow analogues.UV and visible spectra for these dyes were investigated in organic solvents of varying polarities and in different buffer solutions containing 20 percent ethanol.The