3H-Pyrazol-3-one, 1,2-dihydro-1-phenyl-
Pyrazol-3-ol, 1-phenyl-
3-Pyrazolin-5-one, 2-phenyl-
1,2-Dihydro-1-phenyl-3H-pyrazol-3-one
1-Phenyl-3-hydroxypyrazole
1-Phenyl-1,2-dihydropyrazol-3-one
1-Phenyl-2,3-dihydro-1H-pyrazol-3-one
1-Phenyl-1H-pyrazol-3-ol
2-Phenyl-1H-pyrazol-5-one
3-Hydroxy-1-phenyl-1H-pyrazole