Patent ID: 8796461

Claim:
A 1,2,4,5-substituted phenyl compound represented by the following formula (1): wherein one of X 3 and X 4 represents a nitrogen atom and the other of X 3 and X 4 represents a carbon atom, and X 1 , X 2 and X 5 represent a carbon atom; R 1 and R 2 independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or an alkoxy group having 1 to 6 carbon atoms; R 3 and R 4 independently represent an alkyl group having 1 to 6 carbon atoms or an alkoxy group having 1 to 6 carbon atoms; and m represents an integer in the range of 0 to 4, provided that, in the case when m is at least 2, each R 3 may be the same or different; and n represents an integer in the range of 0 to 4, provided that, in the case when n is at least 2, each R 4 may be the same or different.