[{"from": "human", "value": "Provide a description of this molecule. [O-1][Cr][=Branch1][C][=O][=Branch1][C][=O][O][Cr][=Branch1][C][=O][=Branch1][C][=O][O-1].[Zn+2]"}, {"from": "gpt", "value": "The molecule appears as solid orange-yellow crystal or powder. (USCG, 1999)"}]