全氟四乙二醇二甲醚

perfluoro-2,5,8,11,14-pentaoxahexadecane

perfluoro-18-crown-6 ether

Naphthalene-1-carboxylic acid 2-(2-hydroxy-ethoxy)-ethyl ester

2-(2-(2-ethoxyethoxy)ethoxy)ethyl 1-naphthoate