SMILES: C[C@@H]1CC(=O)NN=C1C2=CC=C(C=C2)NN=C(C#N)C#N
Description: The molecule is a hydrazone, a pyridazinone and a nitrile. It has a role as a vasodilator agent, an EC 3.1.4.17 (3',5'-cyclic-nucleotide phosphodiesterase) inhibitor, a cardiotonic drug and an anti-arrhythmia drug.