[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][C][Branch1][S][C][=Branch1][C][=O][N][Branch1][Branch2][C][=Branch1][C][=O][N][Ring1][#Branch1][C][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is an imidazolidine-2,4-dione (hydantoin) in which the imidazolidine nucleus carries a methyl group at N-3 and has ethyl and phenyl substituents at C-5. An anticonvulsant, it is no longer available in the USA or the UK but is still studied largely because of its interesting hydroxylation polymorphism. It has a role as an anticonvulsant."}]