[{"from": "human", "value": "Provide a description of this molecule. [C][C][=N][C][C][O][Ring1][Branch1]"}, {"from": "gpt", "value": "The molecule is a 5-membered heterocyclic compound, which is substituted in the 2-position with a methyl group and which is often used as a monomer in polymerisation reactions."}]