[{"from": "human", "value": "Describe this molecule. [C][C@H1][C@H1][Branch2][Ring2][Branch1][C][C@@H1][C][C@@H1][Branch1][=N][N][=C][N][Ring1][=Branch1][C@@H1][Ring1][#Branch2][C][N][Ring1][Branch1][C@H1][Branch1][#C][C][=C][C][=Branch1][C][=O][N][C][=Branch1][C][=O][N][Ring1][Branch2][O][O][S][=Branch1][C][=O][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a triazaacenaphthylene that is 2,2a,3,4,5,5a,6,7-octahydro-1H-1,8,8b-triazaacenaphthylene which is substituted at positions 3, 4, and 7 by methyl, sulfooxy, and (2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)(hydroxy)methyl groups, respectively (the 2aS,3R,4S,5aS,7R stereoisomer in which the carbon bearing the hydroxy group has R configuration). It is a cyanotoxin produced by several species of freshwater cyanobacteria, such as Aphanizomenon ovalisporum. It has a role as a cyanotoxin, a protein synthesis inhibitor, a hepatotoxic agent and a genotoxin. It is a member of cylindrospermopsins, a triazaacenaphthylene, an alkaloid, a pyrimidone, a secondary alcohol and an organic sulfate. It is a tautomer of a cylindrospermopsin zwitterion."}]