[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a carbohydrazide that is hydrazine in which one of the hydrogens is replaced by an acetyl group. It has a role as a drug metabolite. It is a tautomer of an acetohydrazonic acid."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][N][N]"}]