[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][Branch1][C][C][O][C][=Branch1][C][=O][O][O][C][=Branch1][C][=O][O][C][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule appears as a white solid (shipped packed in Dry Ice to stabilize) with a sharp unpleasant odor. Insoluble in sater and sinks in water. Used as polymerization catalyst. (USCG, 1999)"}]