| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide coloring matter having sufficient absorption for light near 405 nm and sufficient solubility into a solvent. <P>SOLUTION: The coloring matter is represented by general formula (1) and used for recording information by the irradiation of light. In the formula, R<SP>1</SP>-R<SP>12</SP>indicate each independently a hydrogen atom, halogen atom, alkyl group that can have a substituent, alkoxy group that can have a substituent, alkylthio group that can have a substituent, aryl group that can have a substituent, aryloxy group that can have a substituent, arylthio group that can have a substituent, amino group that can have a substituent, nitro group, or group that is combined with an adjacent group and forms a ring that can have a substituent, and X indicates a halogen atom, hydroxy group, alkoxy group that can have a substituent, phenoxy group that can have a substituent, phenyl group that can have a substituent, or amino group that can have a substituent. <P>COPYRIGHT: (C)2007,JPO&INPIT |
