[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule appears as white crystalline powder or granular solid with a slightly pungent odor. Bitter taste. Aqueous solutions neutral to litmus. "}, {"from": "gpt", "value": "[C][C][C][C][=N][N][=N][N][Ring1][Branch1][C][C][Ring1][#Branch2]"}]