3-hydroxymethylantipyrine

2-Methyl-3-(hydroxymethyl)-1-phenyl-3-pyrazolin-5-one

1-Methyl-2-phenyl-5-(hydroxymethyl)-4-pyrazoline-3-one

3H-Pyrazol-3-one, 1,2-dihydro-5-(hydroxyMethyl)-1-Methyl-2-phenyl-