13-[3-(benzenesulfonyl)propyl]-oxacyclotridecan-2-one

4-氧代庚二酸二乙酯

十二烷二酸

1,4,9,10,23,24-hexaoxaspiro [4.22] heptacosane-8,11,22,25-tetraone

4-ethylenedioxyheptane-1,7-dioic acid