An aniline derivative represented by formula (1) is provided.[In formula (1), R1 to R5 are each independently a hydrogen atom or a group represented by formula (2) or (3)(wherein Ar1 and Ar2 each independently represent a C6-20 aryl group and Ar3 represents a C6-20 arylene group, any two of Ar1 to Ar3 may be bonded to each other to form a ring in cooperation with the nitrogen atom, R6 to R8 each independently represent a C1-20 alkyl or C6-20 aryl group optionally substituted by W1, and W1 represents a halogen atom, a nitro group, a C1-20 alkoxy group, or a cyano group), at least one of R1 to R5 being a group represented by formula (3).]
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