SEARCH Articles Figures Tables 2,3-Dimethyl- l-phenyl-3-pyrazolin-5-one 2-Pyrazolin-5-one, 3- 2-pyrazoline 3- Methyl-1 -phenyl-2-pyrazolin-5-ones 3-Alkyl-1 -phenyl-2-pyrazolin-5-ones 5-Phenyl-3-pyrazoline L-Phenyl-3-methyl-2-pyrazolin-5-one Pyrazolinate Pyrazolines