[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an aldehyde. It is a conjugate base of a spermine dialdehyde(2+)."}, {"from": "gpt", "value": "[C][Branch1][Branch2][C][C][N][C][C][C][=O][C][N][C][C][C][=O]"}]