Kaliummalat-Lung 2-Hydroxybutanedioic acid dipotassium salt Malic acid dipotassium dipotassium 2-hydroxybutanedioate dipotassium 2-hydroxysuccinate Butanedioic acid, hydroxy-, dipotassiuM salt L(+)-Potassium Malate potassium dextro,laevo-malate