Sodiooxysulfonylbutanedioic acid diethyl ester, 1,2-Bis-aethoxycarbonyl-aethansulfonsaeure,Natrium-Salz, 1,2-bis-ethoxycarbonyl-ethanesulfonic acid,sodium-salt, diethyl sulfosuccinate sodium salt, sodium 1,4-diethyl sulfonatosuccinate, sodium 1,4-diethyl sulphonatosuccinate, sodium diethyl sulfosuccinate