[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=N][C][C][C@H1][Branch1][Ring2][N][Ring1][=Branch1][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a carboxamidine heterocycle obtained by formal condensation of (2S)-2,4-diaminobutanoic acid with acetic acid. It has a role as an osmolyte. It is a carboxamidine, a member of 1,4,5,6-tetrahydropyrimidines and a monocarboxylic acid. It is a conjugate acid of an ectoinate. It is a tautomer of an ectoine zwitterion."}]