[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@H1][Branch2][Ring1][O][C@H1][Branch2][Ring1][=Branch1][C@H1][Branch1][=N][O][C@][Ring1][=Branch1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O][C@@H1][Branch1][Ring1][C][NH3+1][O][O][O]"}, {"from": "gpt", "value": "The molecule is an amino acid zwitterion obtained by transfer of a proton from the carboxy to the amino group of 8-amino-3,8-dideoxy-alpha-D-manno-octulosonic acid; major species at pH 7.3. It is a tautomer of an 8-amino-3,8-dideoxy-alpha-D-manno-oct-2-ulosonic acid."}]