4,4'-Bis((4-(4-sulfoanilino)-6-(N-2-hydroxyethyl-N-methylamino)-1,3,5-triazin-2-yl)amino)stilbene-2,2'-disulfonic acid, di(diethanolammonium), disodium 68975-70-2 Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-((4-((2-hydroxyethyl)methylamino)-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-, compd. with 2,2'-iminobis(ethanol) (1:2), disodium salt