[{"from": "human", "value": "Describe this molecule. [C][C][=Branch1][C][=O][O-1].[C][C][=Branch1][C][=O][O-1].[C][C][=Branch1][C][=O][O-1].[Cr+3]"}, {"from": "gpt", "value": "The molecule appears as a grayish green to bluish green powder. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used in tanning and in textile dyeing."}]