[{"from": "human", "value": "What can you tell me about this molecule? [C][=C][C][=Branch1][S][=C][C][=C][Ring1][=Branch1][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][NH3+1][O]"}, {"from": "gpt", "value": "The molecule is zwitterionic form of 3-amino-3-(4-hydroxyphenyl)propanoic acid arising from migration of a proton fron the carboxy to the amino group; major species at pH 7.3. It has a role as a bacterial metabolite. It is a tautomer of a 3-amino-3-(4-hydroxyphenyl)propanoic acid."}]