[{"from": "human", "value": "Describe this molecule. [C][C][=C][Branch1][=C][C][=C][Branch1][Branch2][C][=Branch1][C][=O][N][Ring1][#Branch1][C][#N][C][=C][C][=N][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a member of the class of bipyridines that is 2-pyridone which is substituted at positions 3, 5, and 6 by cyano, pyrid-4-yl, and methyl groups, respectively. It is used (particularly intravenously, as the lactate) for the short-term management of severe heart failure. It has a role as an EC 3.1.4.17 (3',5'-cyclic-nucleotide phosphodiesterase) inhibitor, a platelet aggregation inhibitor, a vasodilator agent and a cardiotonic drug. It is a pyridone, a nitrile and a member of bipyridines."}]