[{"from": "human", "value": "Provide a brief overview of this molecule. [O-2].[O-2].[O-2].[Al+3].[Al+3]"}, {"from": "gpt", "value": "The molecule has a chemical formula Al2O3. It is amphoteric in nature, and is used in various chemical, industrial and commercial applications. It is considered an indirect additive used in food contact substances by the FDA."}]