[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=Branch2][Ring2][Branch1][=C][Branch2][Ring1][N][N][C@H1][Branch1][Ring2][S][Ring1][=Branch1][C@@H1][Branch1][Branch1][C][Ring1][Branch1][=O][N][C][=Branch1][C][=O][C][C][=C][C][=C][S][Ring1][Branch1][C][=Branch1][C][=O][O-1][C][N+1][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a first generation semisynthetic cephalosporin. It is derived from cephalosporin C and is a zwitterion at physiological pH."}]