[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch2][Ring2][=Branch1][C@@H1][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][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O-1][C].[Na+1]"}, {"from": "gpt", "value": "The molecule is the sodium salt form of benzylpenicillin, a semi-synthetic, broad-spectrum penicillin antibiotic with bactericidal activity. Benzylpenicillin sodium binds to and inactivates penicillin-binding proteins (PBP) located on the inner membrane of the bacterial cell wall. Inactivation of PBPs interferes with the cross-linkage of peptidoglycan chains necessary for bacterial cell wall strength and rigidity. This results in the weakening of the bacterial cell wall and causes cell lysis."}]