| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a magenta coloring matter having a hue with high clarity suitable for inkjet recording, and providing a recorded product having strong fastness and excellent preservation stability. <P>SOLUTION: The water-soluble anthrapyridone compound represented by formula (1) (wherein, R<SB>1</SB>is an alkyl group or the like; and R<SB>2</SB>and R<SB>3</SB>are each a hydroxy group, a non-substituted mono- or di-alkylamino group, an amino group substituted with a carboxy group, or the like) or the salt thereof is provided. <P>COPYRIGHT: (C)2010,JPO&INPIT |
