from dilute ethanol precipitation red YE; from ethanol precipitation of monoclinic crystal prism. Soluble in ethanol, slightly soluble in water. Toxic. Azoic dyes for color-based,

For cotton fiber and viscose fiber dyeing and printing color, and used for the production Toluidine Red and Yellow G Lufthansa organic pigment intermediates. By p-toluidine by the acylation of p-toluenesulfonyl chloride with nitric acid after the nitration, and then by sulfuric acid hydrolysis and neutralization obtained.