| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dye that includes a salt showing a good spectral density as an active ingredient. <P>SOLUTION: The salt is represented by formula (0), wherein R<SP POS="POST">1</SP>represents a saturated hydrocarbon group; R<SP POS="POST">2</SP>represents H or the like; R<SP POS="POST">3</SP>represents alkyl; R<SP POS="POST">4</SP>to R<SP POS="POST">7</SP>represent H, chloro, methoxy, sulfonamide or the like; ring Z<SP POS="POST">1</SP>and ring Z<SP POS="POST">2</SP>represent an aromatic ring; R<SP POS="POST">21</SP>to R<SP POS="POST">28</SP>represent an aliphatic hydrocarbon group or the like; and X<SP POS="POST">1</SP>represents H or Cl. <P>COPYRIGHT: (C)2013,JPO&INPIT |
