111451-13-9 2-(1,2-Dicarboxyethoxy)-3-hydroxybutanedioic acid tetrasodium salt Butanedioic acid, 2-(1,2-dicarboxyethoxy)-3-hydroxy-, tetrasodium salt Sodium tartrate monosuccinate Tetrasodium 2-(1,2-dicarboxyethoxy)-3-hydroxybutanedioate