Synonyms:
4-(2-hydroxyethyl)-5-methyl-2,4-dihydro-3h-pyrazol-3-one ; 2,3-dihydro-4-(2-hydroxyethyl)-5-methyl-3-oxo-1h-pyrazole ; 1,2-dihydro-4-(2-hydroxyethyl)-5-methyl-3h-pyrazol-3-one ; 3h-pyrazol-3-one, 1,2-dihydro-4-(2-hydroxyethyl)-5-methyl- ; 4-(2-hydroxyethyl)-5-methyl-1,2-dihydro-3h-pyrazol-3-one ; 4-(2-hydroxyethyl)-5-methyl-1,2-dihydropyrazol-3-one