[{"from": "human", "value": "Please give me some details about this molecule. [O][=Cr][=Branch1][C][=O][=O]"}, {"from": "gpt", "value": "The molecule is a chemical compound of hexavalent chromium. It is used mainly in electroplating. Hexavalent chromium is more toxic than other oxidation states of the chromium atom because of its greater ability to enter cells and higher redox potential. (L50)"}]