[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a dipolar aprotic solvent and reagent that may be used in the production of fibers and pharmaceuticals, and as a non-aldehyde fixative."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][N][Branch1][C][C][C]"}]