2,5,8,11-Tetraoxatridecan-13-oic acid, 3-oxo-, methyl ester

2-[2-[2-[2-[2-(2-hydroxyethylamino)ethoxy]ethoxy]ethoxy]ethylamino]ethanol

1-溴-2-(2-(2-(2-溴乙氧基)乙氧基)乙氧基)乙烷

3,6,9-三噁十一烷二酸

tetraglycollic acid dimethylpyrazolide