Adrenocorticotropic Hormone (ACTH) (1-39), rat is a potent melanocortin 2 (MC2) receptor agonist.Peptide fragments of ACTH (1-39) were formed during in vitro incubation of the peptide with membrane preparations. ACTH (1-39) were isolated by high pressure liquid chromatography, and peptide fragments of ACTH (1-39) characterized by determination of amino acid composition and NH2- terminal residue.

Pendulone could be a valuable chemopreventive agent, it shows strong inhibition on the effect of the cell cycle induced by TPA and shows potent anti-tumor-promoting activity for an in vivo two-stage carcinogenesis test.

7-Ketocholesterol?is a metabolite of Cholesterol.