Einecs 269-237-7

4-[[4-[(3-Nitrophenyl)azo]phenyl]azo]phenol

p-[[p-[(m-nitrophenyl)azo]phenyl]azo]phenol

Phenol, 4-((4-((3-nitrophenyl)azo)phenyl)azo)-

Phenol, 4-(2-(4-(2-(3-nitrophenyl)diazenyl)phenyl)diazenyl)-