[{"from": "human", "value": "Please give me some details about this molecule. [C][C][Branch1][C][C][O-1].[C][C][Branch1][C][C][O-1].[C][C][Branch1][C][C][O-1].[Al+3]"}, {"from": "gpt", "value": "The molecule is an oxide of aluminum. It is a useful reagent in organic synthesis. Aluminum is the most abundant metal in the earth's crust and is always found combined with other elements such as oxygen, silicon, and fluorine.  (L739, L740, L761)"}]