[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a saturated fatty aldehyde formally arising from reduction of the carboxy group of nonanoic acid. Metabolite observed in cancer metabolism. It has a role as a human metabolite and a plant metabolite. It is a saturated fatty aldehyde, a n-alkanal and a medium-chain fatty aldehyde. It is functionally related to a nonanoic acid."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][=O]"}]