(Phe2,Nle4)-ACTH (1-24) (human, bovine, rat)

(Phe2,Nle4)-ACTH (1-24) (human, bovine, rat) is a fragment of the ACTH hormone. (Phe2,Nle4)-ACTH (1-24) (human, bovine, rat) can be labeled with I125 on Tyr23 to produce a radiolabeled ligand.