Imidazolidin-2-one
                            Order
                            81484-99-3
                            
                                1,3-dimethyl-2-thioxo-5-[(1,5,5-trimethyl-2-pyrrolidinylidene)ethylidene]imidazolidin-4-one
                            
                        
                        
                            Order
                            95046-25-6
                            
                                1-(2-hydroxyethyl)-3-phenyl-2-thioxo-5-[[3-[3-(sulphooxy)propyl]-3H-benzoxazol-2-ylidene]ethylidene]imidazolidin-4-one, monosodium salt