SEARCH Articles Figures Tables 3- Methyl-5-pyrazolone 5-Pyrazolone, 3-methyl-1-phenyl-, ring 5-Pyrazolone, l-phenyl-3-methyl-4- chromium complex 5-Pyrazolone, l-phenyl-3-methyl-4- chromium complex geometrical isomerism L-Phenyl-3 -methyl- 4-benzoyl-5 -pyrazolone L-Phenyl-3 -methyl- 4-benzoyl-5 -pyrazolone HPMBP) L-Phenyl-3-methyl-5-pyrazolone L-phenyl-3-methyl-4-acyl-5-pyrazolones Methyl-phenyl-pyrazolone, preparation Pyrazolon Pyrazolone Pyrazolons