| 摘要 |
PURPOSE:To form the subject body with high sensitivity by incorporating a specified compd. in the sensitive body. CONSTITUTION:The compd. shown by formula I is incorporated in the sensitive body. In formula I, R1 - R4 are each alkyl or alkoxy group or halogen or hydrogen atom, the groups R1 - R4 are not all hydrogen atom, and are at least two kinds of substitutional groups. The concrete example shown by formula I is exemplified by a compd. shown by formula II. As the compd. shown by formula I plays a role of the excellent effective component of the sensitive body, the sensitive body with the high sensitivity is obtd. |
