3,3'-(((乙烷-1,2-二基双(氧基))双(乙烷-2,1-二基))双(氧基))双(2-羟基苯甲醛)

3,3'-(((Ethane-1,2-diylbis(oxy))bis(ethane-2,1-diyl))bis(oxy))bis(2-hydroxybenzaldehyde)