[{"from": "human", "value": "Please give me some details about this molecule. [C][N][C][=N][C][=Branch2][Ring1][C][=C][Ring1][Branch1][S][C][=N][C][=N][C][=C][Ring1][=Branch1][N][C][=N][Ring1][Branch1][N+1][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule appears as pale yellow crystals or yellowish powder. Decomposes at 243-244 \u00b0C. Used for the treatment of rheumatoid arthritis. A known carcinogen."}]