Einecs 289-013-2

5-[[2,4-Dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]-4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-2,7-naphthalenedisulfonic acid

5-((2,4-Dihydroxy-3-((4-nitrophenyl)azo)phenyl)azo)-4-hydroxy-3-((2-hydroxy-5-nitrophenyl)azo)naphthalene-2,7-disulphonic acid

5-[[2,4-dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]-4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]naphthalene-2,7-disulphonic acid