[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][Ring1][C][N][C][O][C][C][O][C][C][O][C][C][C][N][C][=Branch1][C][=O][C][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "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."}]