.alpha.,.alpha.-Dimethylbutanoic acid .alpha.,.alpha.-Dimethylbutyric acid 2,2-Dimethylbutanoic acid 2,2-Dimethylbutyric acid 595-37-9 Butanoic acid, 2,2-dimethyl- Butyric acid, 2,2-dimethyl- NSC16045 Neohexanoic acid