1,5,5'-trimethyl-2,2'-diphenyl-1,2,2',4'-tetrahydro-4,4'-azanylylidene-bis-pyrazol-3-one

依达拉奉

4-(4-diethylaminophenylimino)-5-methyl-2-phenyl-3,4-dihydro-2H-pyrazol-3-one

1-phenyl-3-methyl-4-benzhydryl-2-pyrazolin-5-one

4-aminoantipyrine