Einecs 267-517-3

sodium 4-[[4-[(4-ethoxyphenyl)azo]-2,5-dimethoxyphenyl]azo]benzenesulphonate

4-((4-(4-Ethoxyphenylazo)-2,5-dimethoxyphenyl)azo)benzenesulfonic acid, sodium salt

Benzenesulfonic acid, 4-[[4-[(4-ethoxyphenyl)azo] -2,5-dimethoxyphenyl]azo]-, sodium salt

Benzenesulfonic acid, 4-(2-(4-(2-(4-ethoxyphenyl)diazenyl)-2,5-dimethoxyphenyl)diazenyl)-, sodium salt (1:1)