IUPAC: (2,5-dioxoimidazolidin-4-yl)urea; 5-[(3aS,4S,6aR)-2-oxo-hexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanoic acid

SMILES: NC(=O)NC1NC(=O)NC1=O.OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12