1,1-Dimethoxy-2-propanone 1,1-Dimethoxyacetone 2-Propanone, 1,1-dimethoxy- 6342-56-9 AI3-37790 Dimethoxymethyl methyl ketone EINECS 228-735-4 Methylglyoxal dimethyl acetal NSC 50127 Pyruvaldehyde dimethyl acetal Pyruvaldehyde, 1-(dimethyl acetal)