| 摘要 |
PROBLEM TO BE SOLVED: To provide a new xanthene compound which can give printed products having excellent light fastness without increasing the amount of an additive, and to provide a coloring liquid using the same. SOLUTION: This xanthene compound having a structure represented by the general formula (I) [R<SB>1</SB>and R<SB>2</SB>are each independently a 1 to 4C straight chain or branched alkyl; R<SB>3</SB>and R<SB>4</SB>are each independently H, a 1 to 4C straight chain or branched alkyl or a 1 to 4C straight chain or branched alkoxy; M is H, an alkyl metal or NH<SB>4</SB>]. COPYRIGHT: (C)2004,JPO&NCIPI
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