[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is propanoic acid in which one of the methylene hydrogens is substituted by a 6-chloro-9H-carbazol-2-yl group. A non-steroidal anti-inflammatory drug, it is no longer used in human medicine but is still used for treatment of arthritis in elderly dogs. It has a role as a non-steroidal anti-inflammatory drug, an EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor and a photosensitizing agent. It is a member of carbazoles and an organochlorine compound."}, {"from": "gpt", "value": "[C][C][Branch2][Ring1][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][Branch1][Ring2][N][Ring1][#Branch1][C][=C][C][=Branch1][Ring2][=C][Ring1][#Branch1][Cl][C][=Branch1][C][=O][O]"}]