2-Hydroxy-3-methyl-5-formylbenzoic acid (1 Moore) and N-(2-methylphenyl)taurine?(2 Moore) condensation, the product through the chrome processing in fiber on color.
Properties and Applications
brilliant red light purple. Soluble in water for red purple, soluble in ethanol to purple. In concentrated sulfuric acid to golden yellow, after dilution for light purple. Dye aqueous solution to join sodium hydroxide color disappear.