[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch2][Ring2][#Branch1][C@@H1][Branch2][Ring1][=C][N][C@H1][Branch1][Ring2][S][Ring1][Branch1][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][C]"}, {"from": "gpt", "value": "The molecule is a penicilloic acid where the side-chain N-acyl group is specified as phenylacetyl. It has a role as an epitope. It is a conjugate acid of a benzylpenicilloate(1-) and a benzylpenicilloate(2-)."}]