[{"from": "human", "value": "Describe this molecule. [C][C][=Branch1][C][=O][O][C][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule appears as a clear colorless liquid with a strong odor of vinegar. Flash point 129 \u00b0F. Corrosive to metals and tissue. Density 9.0 lb /gal. Used to make fibers, plastics, pharmaceuticals, dyes, and explosives."}]