Synonyms:
benzenesulfonicacid, 3-[[4-[(4-hydroxyphenyl)azo]-2,5-dimethoxyphenyl]azo]- (9ci) ; benzenesulfonic acid,3-[2-[4-[2-(4-hydroxyphenyl)diazenyl]-2,5-dimethoxyphenyl]diazenyl]- ; 3-[4-(4-hydroxyphenylazo)-2,5-dimethoxyphenylazo]benzenesulfonic acid ; 3-[[4-[(4-hydroxyphenyl)azo]-2,5-dimethoxyphenyl]azo]benzenesulphonic acid