(S)-(-)-4-Amino-2-hydroxybutyric Acid; (S)-4-Amino-2-hydroxybutanoic Acid; (S)-4-Amino-2-hydroxybutyric Acid; 4-Amino-(2S)-hydroxybutyric Acid;L-γ-Amino-α-hydroxybutyric Acid; L-(-)-γ-Amino-α-hydroxybutyric Acid; L-4-Amino-2-hydroxybutyric Acid