.beta.-Hydroxybutyric acid p-phenetidide 1083-57-4 3-Hydroxy-p-butyrophenetidide Betadid Bucetin Butanamide, N-(4-ethoxyphenyl)-3-hydroxy- NSC320045 p-Butyrophenetidide, 3-hydroxy- p-Ethoxy-N-(.beta.-hydroxybutyryl)aniline