IUPAC: sodium 3-[(E)-{[5-(4-nitrophenyl)furan-2-yl]methylidene}amino]-2,5-dioxoimidazolidin-1-ide

SMILES: [Na+].[O-][N+](=O)c1ccc(cc1)-c1ccc(\C=N\N2CC(=O)[N-]C2=O)o1