[{"from": "human", "value": "Provide a description of this molecule. [C][Branch1][=N][C][Branch1][C][O][P][=Branch1][C][=O][Branch1][C][O][O-1][NH3+1]"}, {"from": "gpt", "value": "The molecule is a zwitterion resulting from a transfer of a proton from the phosphonate to the amino group of (2-amino-1-hydroxyethyl)phosphonate. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a tautomer of a 1-hydroxy-2-aminoethylphosphonic acid."}]