A new Fe-azo complexdyestuff was synthesized by complexing iron salt with the pre-dyestuff that was prepared from the o-aminophenolsulfonic acid and Cl-substituted pyrazolone.
Patrinia, Isatis root and complex prescription also significantly or very significantly inhibited exudation of dyestuff induced by acetic acid in mouse's abdominal cavity (P<0.05, P<0.01).
To meet with environment protection and convenience for use, we developed a series of metal complex liquid type, which are water base and solvent base liquid, dyestuff content is 16%.