[{"from": "human", "value": "Generate a molecule based on the given description. The molecule appears as odorless white crystalline powder of starch-like appearance. Bitter taste. Saturated solution is neutral or slightly acid to litmus. "}, {"from": "gpt", "value": "[C][C][C][C][=C][C][=Branch1][C][=O][N][C][=Branch1][C][=S][N][Ring1][Branch2]"}]