| abstract |
A triphenylamine derivative having improved sensitivity characteristics when used as a hole transporting agent for an electrophotographic photoreceptor. A triphenylamine derivative represented by the following formula (1): (R 1 is an alkyl group of C1-8, R 2 to R 5 is H, an alkyl group of C1-8, etc., at least one of the C1-8 alkyl group of R 2 and R 3, etc. R 6 is H, a C1-6 alkyl group, and Ar 1 , Ar 2 are H, an aryl group of C6-20, etc. Except when both Ar 1 and Ar 2 are H. ) [Selection] Figure 1 |