[{"from": "human", "value": "Describe this molecule. [O-1][Cr][=Branch1][C][=O][=Branch1][C][=O][O-1].[Ca+2]"}, {"from": "gpt", "value": "The molecule is a yellow powder. It is slightly soluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to prevent its spread to the environment."}]