1-(2-Hydroxyethyl)-4,6-dimethyl-2(1H)-pyrimidinone 14716-32-6 2(1H)-Pyrimidinone, 1-(2-hydroxyethyl)-4,6-dimethyl- N-(2-Hydroxyethyl)-4,6-dimethyl-2-dehydropyrimidone Ximedon Ximedone Xymedone xymedon