| abstract |
A charge control agent and a toner having excellent charging characteristics are provided. The charge control agent contains a bisphthalimide derivative represented by the formula (1). As a result, it is possible to provide a safe negatively chargeable charge control agent that increases the rising speed of charge, has a high charge amount, and has no problem with waste regulations. Further, it is possible to provide a negatively chargeable toner for electrostatic charge development, particularly a negatively chargeable polymerized toner, having excellent charging performance using the charge control agent. [Chemical 1] ... (1) [Selection figure] None |