[{"from": "human", "value": "Describe this molecule. [C][C][=Branch1][C][=C][C][=Branch1][C][=O][O][C]"}, {"from": "gpt", "value": "The molecule is an enoate ester having methacrylic acid as the carboxylic acid component and methanol as the alcohol component. It has a role as an allergen and a polymerisation monomer. It is an enoate ester and a methyl ester. It is functionally related to a methacrylic acid."}]