The molecule is a polyether that is 4,7,10-trioxatridecane substituted at positions 1 and 13 by an amino group and a 3-carboxypropanamido group respectively. Flexible and hydrophilic, it is used as an extended linker in solid-phase immunoassays. It is a polyether, a monocarboxylic acid, a secondary carboxamide and a primary amino compound.
4-[3-[2-[2-(3-aminopropoxy)ethoxy]ethoxy]propylamino]-4-oxobutanoic acid