[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. Gas with an offensive odor. Mp: -26 \u00b0C"}, {"from": "gpt", "value": "[C-1][#O+1].[C-1][#O+1].[C-1][#O+1].[C-1][#O+1].[Co]"}]