Put it briefly, the invention provides a kind of new labelling strategies that utilizes chemical compound, this chemical compound is and the bonded N2S2 chelate of targeting part (targeting ligand) that wherein this targeting part is a disease cell cycle target compound, tumor vessel generation targeting part, tumor apoptosis target ligand, disease target orientation ligand, ethyol, angiostatin, monoclonal antibody C225, monoclonal antibody CD31. monoclonal antibody CD40, capecitabine, COX-2, dCMP 1beta-Deoxyribofuranosylcytosine-5-phosphate, fullerene, Trastuzumab, the human serum albumin, lactose, lutropin, 2-methyl-3-hydroxy-4-formyl-5-hydroxymethylpyridine., quinazoline, Thalidomide, siderophillin or trimethyl lysine.The invention still further relates to the test kit of application purpose chemical compound and utilize chemical compound of the present invention to estimate the method for desired substance pharmacological property.
