.alpha.-Ethylbutyric acid 2-Ethylbutanoic acid 2-Ethylbutyric acid 3-Pentanecarboxylic acid 88-09-5 Acetic acid, diethyl- Butanoic acid, 2-ethyl- Butyric acid, 2-ethyl- Diethylacetic acid NSC11765 WLN: QVY2&2