α-HydroxySobutyric Acid; 2-Methyllactic Acid; 2-Hydroxy-2-methylpropanoic Acid; 2,2-Dimethylglycolic Acid; 2-Hydroxy-2-methylpropionic Acid; 2-HydroxySobutyric Acid; Acetonic Acid; Alpha-hydroxySobutanoic Acid; Hydroxydimethylacetic Acid; SC 402158; SC 4505; α-HIB; α-Hydroxy-α-methylpropanoic Acid; α-HydroxySobutanoic Acid; α-HydroxySobutyric Acid;