[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=C][C][=Branch2][Ring1][=C][=C][C][=C][Ring1][=Branch1][C][=C][Branch1][=C][C][=Branch1][#Branch2][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][O][C][=Branch1][C][=O][O][Ring1][=C][O]"}, {"from": "gpt", "value": "The molecule is an altertoxin, which is a mycotoxin of Alternaria fungi. Altertoxins are important contaminants in cereals, vegetables, and fruits, as well as in the ground, on wood or walls. Studies have shown altertoxins to be toxic, genotoxic, mutagenic, and carcinogenic. In particular, they have been associated with esophageal cancer in humans. (A2977, A2979)"}]