Synonyms: 2-Naphthalenesulfonic acid, 7-4,6-bis3-(diethylamino)propylamino-1,3,5-triazin-2-ylamino-4-hydroxy-3-4-(4-sulfophenyl)azophenylazo-, disodium salt;Disodium 7-[4,6-bis[3-(diethylamino)propylamino]-1,3,5-triazin-2-ylamino]-4-hydroxy-3-[4-(4-sulfophenylazo)phenylazo]-2-naphthalene sulfonate;disodium 7-((4,6-bis(3-diethylaminopropylamino)-1,3,5-triazine-2-yl)amino)-4-hydroxy-3-(4-(4-sulfonatophenylazo)phenylazo)-2-naphthalene sulfonate