2,2'-[氧基二(乙烯氧基)]二乙酰二氯

1-(3,5-dimethylpyrazol-1-yl)-2-[2-(3,5-dimethylpyrazol-1-yl)-2-oxoethoxy]ethanone

tetraglycollic acid dimethylpyrazolide

1,4,7-trioxa-10,13-diazacyclopentadecane

1,4,7,13-Tetraoxa-10,16-diazacyclooctadecane