Aminoacetone
Aminoacetone is the organic compound with the formula CH3C. The semicarbazone of the hydrochloride is another bench-stable precursor. Aminoacetone is a metabolite that is implicated in the biosynthesis of methylglyoxal.
Aminoacetone is also produced during catabolism of the amino acid threonine. Threonine is first dehydrogenated to 2-amino-3-oxobutyrate, which is unstable and spontaneously decarboxylates to aminoacetone. Aminoacetone is then oxidized and deaminated, giving 2-oxopropanal, which is in turn oxidized to pyruvate. This pathway is the most important catabolic pathway of threonine in mammals.