92-72-8

5-Chloro-2,4-dimethoxybenzenamine?and 3-Hydroxy-2-naphthoic acid condensation.

gray or green powder, melting point for 193 ~ 194 ℃. Insoluble in water solution and sodium carbonate, soluble in pyridine, ethanol and benzene, easily soluble in acetone. In the yellow liquid for sulfuric acid, and display the green fluorescent; Sodium hydroxide solution for yellow in the liquid. Stability of air. Mainly used for cotton fabrics, PVA, viscose, silk and vinegar fiber dyeing and printing of cotton fabric. Can be used for the manufacture of pigment fast. This product to cotton affinity medium, coupled ability medium. This product bright color, good fastness.