94157-82-1 2,2-[[3-methyl-4-[[4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]phenyl]imino]bisethyl bis(hydrogen sulphate), sodium salt
94158-27-7 hydrogen 5-methyl-2-[2-methyl-3-[5-methyl-3-(3-sulphonatopropyl)-3H-benzothiazol-2-ylidene]prop-1-enyl]-3-(3-sulphonatopropyl)benzothiazolium, sodium salt