111451-16-2 2,3-Bis(1,2-dicarboxyethoxy)butanedioic acid hexasodium salt Butanedioic acid, 2,3-bis(1,2-dicarboxyethoxy)-, hexasodium salt Hexasodium 2,3-bis(1,2-dicarboxyethoxy)butanedioate Sodium tartrate disuccinate