(S)-2-hydroxysuccinicacid;(2S)-2-Hydroxybutanedioic Acid; (-)-(S)-Malic Acid; (-)-Hydroxysuccinic Acid; (-)-L-Malic Acid; (-)-Malic Acid; (2S)-2-Hydroxybutanedioic Acid; (2S)-2-Hydroxy-succinic Acid; (2S)-Malic Acid; (S)-Malic Acid; Apple Acid; L-(-)-Malic Acid; L-Apple Acid; L-Malic Acid; NSC 9232; S-(-)-Malic Acid; S-2-Hydroxybutanedioic Acid;L-(-)-Malic Acid