[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][Branch1][S][C][C][Branch1][Branch2][C][=Branch1][C][=O][O][Ring1][=Branch1][C][S][C][#N][C]"}, {"from": "gpt", "value": "The molecule is a butan-4-olide having a thiocyanatomethyl group at the 3-position and two methyl substituents at the 5-position. It is a butan-4-olide and a member of thiocyanates."}]