2-[[6-(Acetylamino)-1-hydroxy-3-sulfo-2-naphtyl]azo]-6-[[2-(sulfooxy)ethyl]sulfonyl]-1-naphthalenesulfonic acid

2-[[6-acetamido-1-hydroxy-3-sulpho-2-naphthyl]azo]-6-[[2-(sulphooxy)ethyl]sulphonyl]naphthalene-1-sulphonic acid

2-[[6-(Acetylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-6-[[2-(sulfooxy)ethyl]sulfonyl]-1-naphthalenesulfonic acid