Chloro[4-[2-(2-hydroxy-1-naphthalenyl)diazenyl]phenyl]mercury3076-91-3100 % similar Pigment red 49:11103-38-434 % similar Basic blue 164569-88-432 % similar C.I. Pigment red 53:15160-02-131 % similar C.I. Acid blue 19312392-64-230 % similar