Product Description: NH2-NODAGA is a NODAGA-type metal chelator that can bind to radionuclides to prepare radionuclide conjugates (RDCs). NH2-NODAGA can react with diethyl squarate in 0.5M phosphate buffer (room temperature, 2 h, pH 7-7.5) to obtain NODAGA.SA. NODAGA.SA can target L-lysine urea-L-glutamate (KuE), which is a key structure of prostate-specific membrane antigen (PSMA). NODAGA.SA.KuE can bind [68]Ga and can be used for PET examination of NMRInu/nu nude mice bearing LNCaP tumors.