| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compound that shows high solubility or high compatibility in a petroleum product, and is useful for marking. <P>SOLUTION: The compound is represented by formula I, wherein Ar<SP>1</SP>and Ar<SP>2</SP>are phenylene etc., R<SP>1</SP>is alkyl, R<SP>2</SP>is acyl etc., R<SP>3</SP>is substituted or non-substituted phenyl etc., and Z represents hydrogen atom or a group of atoms that combine with the Ar<SP>2</SP>or R<SP>3</SP>to form a lactone ring. <P>COPYRIGHT: (C)2011,JPO&INPIT |
