[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][O][C][Branch1][=C][O][C][Branch1][=Branch2][O][C][Branch1][Ring2][O][Ring1][Branch2][C][C][C]"}, {"from": "gpt", "value": "The molecule is a cyclic tetramer of acetaldehyde commonly used as a pesticide against slugs, snails, and other gastropods. Metaldehyde intoxication leads to central nervous system depression, and liver and kidney injury. (L1782)"}]