4-[(4-Amino-5-methox

2-methoxy-5-methyl-4-(4-sulfophenylazo)aniline

2-Methoxy-5-methyl-4-[(4-sulfophenyl)azo]benzenamine

p-(4-amino-5-methoxy-o-tolylazo)-benzenesulfonic acid

p-[(4-amino-5-methoxy-o-tolyl)azo]benzenesulphonic acid

4-[(4-amino-5-methoxy-2-methylphenyl)azo]benzenesulfonic acid