1-Isobutyl-3,4-diphenyl-5-pyrazolylessigsaeure 1-Isobutyl-3,4-diphenylpyrazole-5-acetic acid 1H-Pyrazole-5-acetic acid, 1-(2-methylpropyl)-3,4-diphenyl- 50270-32-1 Bufezolac Bufezolac [INN] Bufezolaco [INN-Spanish] Bufezolacum [INN-Latin] LM 22070