1-(4-Methoxyphenyl)-3-methyl-1H-pyrazol-5(4H)-one

1-(4-Methoxyphenyl)-3-methyl-1H-pyrazol-5(4H)-one (Compound 2) has antiprion activity in ScN2a and F3 cells with IC50 values of 13 nM and 25 nM, respectively.