https://www.selleckchem.com/pr....oducts/cp21r7-cp21.h
[This corrects the article DOI 10.3389/fnins.2018.00890.].[This corrects the article DOI 10.3389/fnins.2019.01046.].Pigment dispersing factors (PDFs, or PDHs in crustaceans) form a structurally related group of neuropeptides found throughout the Ecdysozoa and were first discovered as pigmentary effector hormones in crustaceans. In insects PDFs fulfill crucial neuromodulatory roles, most notably as output regulators of the circadian system, underscoring their central position in physiological and behavioral organization of arthropods