[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][C][C][C][C][=Branch1][C][=O][N][C][Branch2][Ring2][#Branch1][C][C][=C][N][C][=C][Branch1][#C][C][=C][C][=Branch1][=Branch1][=C][Ring1][=Branch2][Ring1][=Branch1][N][Ring1][S][C][C][Branch1][C][C][Branch1][=Branch2][C][C][C][=C][Branch1][C][C][C][C][=C][C][O]"}, {"from": "gpt", "value": "The molecule is a cyanotoxin produced by certain cyanobacteria species, notably <i>Moorea producens</i> (formerly classified as <i>Lyngbya majuscula</i>). It is used as a defensive secretion to protect this cyanobacteria from predation by fish, being a potent irritant and vesicant, as well as a carcinogen. Low concentrations more commonly encountered cause milder symptoms, known as seaweed dermatitis. The toxin is highly inflammatory and vesicatory.  It is also a strong tumor promoter through activation of protein kinase C."}]