| 摘要 |
<p>A methine compound represented by the following formula and an agent containing the same for coloring resins such as polystyrene, ABS. <CHEM> wherein R<1> is a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, a nitro group or a lower carboxylic ester group; R<2> is a lower alkyl group, a lower carboxylic amide group or a lower carboxylic ester group; and X is -SO2NR<3>R<4>, -SO2NCHNR<5>R<6> or -SO2R<7>, where R<3> and R<4> each is a hydrogen atom, a lower alkyl group or a phenyl gorup, R<5> and R<6> each is a lower alkyl group, and R<7> is a lower alkyl group or a hydroxyethyl group.</p> |
