[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=Branch1][O][=C][C][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][As][=Branch1][C][=O][Branch1][C][O][O]"}, {"from": "gpt", "value": "The molecule is an organoarsenic compound. It is used as an additive in poultry feed to improve weight gain and feed efficiency, while preventing blackhead disease. It is marketed as Histostat by Zoetis, a publicly traded subsidiary of Pfizer."}]