Product Description: 4-Aminobutyl-DOTA-tris(t-butyl ester)is a bifunctional chelator (Bifunctional Chelator; BFC) and a macrocyclic DOTA derivative used for tumor pre-targeting. 4-Aminobutyl-DOTA-tris(t-butyl ester) can be used for conjugation of peptides and radionuclides.