[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a colorless to light yellow liquid with a pleasant odor. Floats on water. Freezing point is 64 \u00b0F. (USCG, 1999)"}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][=O]"}]