| abstract |
yellow ? Orange ? Brown ? As a pigment having a red color, excellent color development, various fastnesses such as light resistance, ozone resistance, and color fading balance for various recordings, especially inkjet recording, and excellent solubility in water, The azo compound represented by 1) or its salt is provided. Moreover, the ink composition containing this pigment | dye is provided. In the formula, R 1 to R 8 each independently represent a hydrogen atom; a C1-C4 alkyl group; a C1-C4 alkoxy group, and the like, and X represents a C1-C8 alkylenediamino group; a xylylenediamino group or the like. |