2-Amino-5-nitrobenzenesulfonic acid?diazo, and 2-Amino-4-methylanisole coupling, again diazo, in alkaline conditions and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling.
Properties and Applications
blue-ray red. Soluble in water and ethanol is purple. The strong sulfuric acid for yellow green, diluted is shallow brown. The dye solution to join strong sodium hydroxide solution for blue light green, a black light blue precipitation.
