Ketobutyric acid, ketobutanoic acid, oxobutyric acid, or oxobutanoic acid may refer to the following chemical compounds:
α-Ketobutyric acid (2-oxobutyric acid) β-Ketobutyric acid (acetoacetic acid or 3-oxobutyric acid)
In addition, oxobutyric acid, or oxobutanoic acid may refer to:
4-Oxobutanoic acid (succinic semialdehyde, 4-oxobutyric acid)
See also Dicarbonyl