3-Aminobenzenesulfonic acid diazo, and Naphthalen-1-amine coupling, its product to diazo, coupled with the 8-Aminonaphthalene-1-sulfonic acid .
Properties and Applications
red light black. Moderate soluble in water for violet black, slightly soluble in ethanol for purple. The strong sulfuric acid for green light blue, diluted into a deep red. In water solution to join strong hydrochloric acid deep red precipitate; With strong sodium hydroxide solution for purplish red color.
