[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule appears as a yellowish white crystalline solid. Absorbs moisture from the air. Decomposed by water to form arsenic acid and hydrobromic acid, a corrosive. Intensely toxic."}, {"from": "gpt", "value": "[As][Branch1][C][Br][Branch1][C][Br][Br]"}]