(S)-2-amino-3-methylbutanoic acid; (+)-2-Amino-3-methylbutyric Acid; (2S)-2-Amino-3-methylbutanoic Acid; (S)-2-Amino-3-methylbutanoic Acid; (S)-Valine; (S)-?-Amino-?-methylbutyric Acid; L-(+)-?-Aminoisovaleric Acid; L-?-Amino-?-methylbutyric Acid; NSC 76038;