Patent ID: 7256298

Claim:
A pyrazole derivative represented by the general formula [I] or a salt thereof: wherein R 1 represents a C1 to C6 alkyl group, R 2 represents a C1 to C3 haloalkyl group, R 3 represents a hydrogen atom, a C1 to C3 alkyl group which may be substituted with one or more substituents selected from the following substituent group α, or a formyl group, R 4 represents a hydrogen atom or a C1 to C3 haloalkyl group, provided that R 4 represents a C1 to C3 haloalkyl group in the case that R 3 is a hydrogen or a formyl group and R 4 is a hydrogen group or a C1 to C3 haloalkyl group in the case that R 3 is a C1 to C3 alkyl group which may be substituted with one or more substituents selected from the following substituent group α; “Substituent group α” halogen atoms, —SH group, —SC(═NH)NH 2 group.