1-Benzyl-3-methyl-2-pyrazolin-5-one 1-Benzyl-3-methylpyrazolone-5 2-Benzyl-2,4-dihydro-5-methyl-3H-pyrazol-3-one 2-Pyrazolin-5-one, 1-benzyl-3-methyl- 946-23-6 BRN 0611140 EINECS 213-416-4