A chemical compound represented by the formula [I]:(wherein R1 represents a hydroxyl group or the like, m represents 0 or an integer of 1 to 5, R2 represents a halogen atom or the like, k represents 0 or an integer of 1 to 4, R3, R31, R4, R41, R5, R51, R6, R61, and R7 each independently represents a hydrogen atom or the like, X represents an oxygen atom or the like, and n represents 1),a salt, an N-oxide of the chemical compound represented by formula [I], and a pest control agent containing the formula [I] as its active constituent.