Also Called: disodium 4,4'-bis[[6-anilino-4-[(2-hydroxyethyl)methylamino]-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulphonate;Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[ 5-[[4-[(2-hydroxyethyl)methylamino]-6-(phenylamino )-1,3,5-triazin-2-yl]amino]-, disodium salt;Dinatrium-4,4'-bis[[6-anilino-4-[(2-hydroxyethyl)methylamino]-1,3,5-triazin-2-yl]amino]stilben-2,2'-disulfonat;Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[[4-[(2-hydroxyethyl)methylamino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]-, sodium salt (1:2);Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[[4-[(2-hydroxyethyl)methylamino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]-, disodium salt