Abstract: To provide a yellow toner satisfying good toner particles and a superior coloring power, the toner has toner base particles having at least a binder resin, a colorant and a wax component, and contains as the colorant at least a coloring matter compound represented by the following general formula (1) and a pigment represented by the following formula (2).

Abstract: The invention provides a colorant compound represented by the following general formula (1): wherein R1 and R2 represent independently from each other a species selected from at least one of a hydrogen atom, an alkyl group, and an aralkyl group. R3 represents a species selected from at least one of a hydrogen atom, a cyano group, and —COR5, where R5 is any of a hydroxyl group, an alkoxy group, and an amino group. R4 represents a species selected from at least one of a hydrogen atom, an alkyl group, an aryl group, and an aralkyl group. Cy represents an aryl group. Optionally, at least one anionic group may be present in the general formula (1).

Abstract: Provided is a yellow toner having toner particles each containing at least a binder resin, a colorant, and a polar resin, the yellow toner being characterized in that: the colorant is a coloring compound having a specific structure; in a microscopic compression test at a measurement temperature of 25° C., the toner has a recovery ratio Z(25) of 40 to 80%; and the toner has a glass transition temperature (TgA) measured with a differential scanning calorimeter (DSC) of 40° C. to 60° C. and a temperature (P1) of the highest endothermic peak measured with the DSC of 70° C. to 90° C., and the temperature (P1) of the highest endothermic peak and the glass transition temperature (TgA) satisfy the relationship of 15° C.?P1?TgA?50° C.

Abstract: Provided are a coloring compound for color toner which satisfies all of solubility in an organic solvent, a color tone, and lightfastness, and does not inhibit the polymerization of a polymerizable monomer when used in a polymerized toner, and a yellow toner using the coloring compound and achieving compatibility between a good color tone and excellent lightfastness, in which, the coloring compound has a structure represented by the following formula (1).