Einecs 246-826-7

7-Hydroxy-8-[4-(phenylazo)phenylazo]-1,3-naphthalenedisulfonic acid

7-Hydroxy-8-[[4-(phenylazo)phenyl]azo]-1,3-naphthalenedisulfonic acid

7-hydroxy-8-[[4-(phenylazo)phenyl]azo]naphthalene-1,3-disulphonic acid