| 摘要 |
PROBLEM TO BE SOLVED: To provide a compound useful as a color material which has high magenta color development and is excellent in light fastness.SOLUTION: The compound is represented by formula (1). (Among R, R, Rand R, at least one is an alkyl group and at least one is a sulfonic acid group or sulfamoyl group; Rand Rare each independently H, an alkyl group, an alkoxy group or an aryloxy group; R, R, Rand Rare each independently H, an alkyl group, an alkoxy group, an aryloxy group, or the like; n is an integer from 0 to 3; and Z are each independently a sulfonic acid group or sulfamoyl group.)SELECTED DRAWING: None |
