| 摘要 |
An electrophotographic toner containing a compound of the following formula (1): <IMAGE> (1) wherein X is a <IMAGE> wherein A is an electron attractive group, and each of R1 and R2 which are independent of each other, is a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, an aryl group, an aralkyl group or a hydroxyl group, or R1 and R2 together form a ring), <IMAGE> wherein A, R1 and R2 are as defined above), or <IMAGE> wherein A, R1 and R2 are as defined above), and Y is a hydrogen atom, an alkyl group or an aryl group.
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