[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][Branch1][#Branch2][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][C][N][C][=Branch1][C][=O][C][Branch1][C][C][N]"}, {"from": "gpt", "value": "The molecule is a monocarboxylic acid amide in which 2,6-dimethylphenylaniline and isobutyric acid have combined to form the amide bond; used as a local anaesthetic. It has a role as a local anaesthetic, an anti-arrhythmia drug and a sodium channel blocker."}]