ID 1.2.1.23 DE 2-oxoaldehyde dehydrogenase (NAD(+)). AN Alpha-ketoaldehyde dehydrogenase. AN Methylglyoxal dehydrogenase. CA A 2-oxoaldehyde + NAD(+) + H(2)O = a 2-oxo acid + NADH. CC -!- Not identical with EC 1.2.1.49. //