[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C][C][C][Ring1][=Branch1][C][=Branch1][C][=O][O][C][Ring1][#Branch2][=O]"}, {"from": "gpt", "value": "The molecule is a cyclic dicarboxylic anhydride that is the cyclic anhydride of methylhexahydrophthalic acid. It has a role as an allergen and a curing agent. It is a cyclic dicarboxylic anhydride and a tetrahydrofurandione."}]