2,2-Dimethylpropanoic Acid; 2,2,2-Trimethylacetic Acid; 2,2-Dimethylpropanoic Acid; 2,2-Dimethylpropionic Acid; Neopentanoic Acid; Neovaleric Acid; Trimethylacetic Acid; Trimethylmethanecarboxylic Acid; Versatic 5 Acid; tert-Pentanoic Acid; α,α-Dimethylpropionic Acid