Urocortin rat can be used for western blotting.The product can also be used for studying that whether CRF receptor type 2 (CRF2) and its high-affinity ligand, urocortin 1 (Ucn1) can mediate sex-specific cellular stress responses by using corticotropin-releasing factor receptor 2-deficient (Crhr2-/- ) and wild-type (WT) mice.