C3 Peptide P16, is a 16 amino acid synthetic peptide derived from human C3d, a fragment generated in trypsin-cleaved C3. C3 Peptide P16 enhances in vitro phosphorylation of pp105 and pp100, a cellular component presenting in the human B lymphoma cells.

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.

Betulonic acid amide stimulated the regenerative response in hepatocytes under conditions of combined toxic exposure and promoted recovery of their qualitative and quantitative characteristics.