[{"from": "human", "value": "What can you tell me about this molecule? [C][C][Branch2][Branch1][N][C@@H1][Branch2][Branch1][Ring1][N][C@H1][Branch1][Ring2][S][Ring1][Branch1][C@@H1][Branch1][Branch1][C][Ring1][Branch1][=O][N][C][=Branch1][C][=O][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][C][=C][C][=C][Branch1][=Branch1][C][C][C][Ring1][Branch1][C][=C][Ring1][=Branch2][C][=Branch1][C][=O][O-1][C].[Na+1]"}, {"from": "gpt", "value": "The molecule is the sodium salt of indanyl carbenicillin, a broad-spectrum, semi-synthetic carboxypenicillin antibiotic with bactericidal activity. Carbenicillin acylates C-terminal domain of penicillin-sensitive transpeptidase, resulting in opening the lactam ring of the antibiotic. This inactivation prevents the formation of the cross-linkage of peptidoglycan strands, thereby inhibiting the third and last stage of bacterial cell wall synthesis. As a result, cell wall integrity is compromised and cell lysis may follow. This agent is used mainly for gram-negative infections, and has limited gram-positive coverage."}]