3-Aminophenylphosphonic acid and?2-Aminobenzene-1,4-disulfonic acid diazo, respectively with the 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid and alkaline acid medium coupling.
Properties and Applications
application: green light blue. Dark blue powder, soluble in water. And dispersal dyes with bath for polyester/cotton blended fabric dyeing and printing.