Description: Peptide to Substance P (1-4) Form: Lyophilized powder CAS Number : 57468-16-3Molecular Formula : C22H40N8O5Molecular Weight : 496.6Purity : > 95%Chemical Structure : H-Arg-Pro-Lys-Pro-OHApplication : A fragment which is hydrolyzed from substance P by a prolyl endopeptidase. It seems to stabilize substance P against proteolytic degradation, to modulate the activity of substance P on various tissues, to exert a stimulatory effect on phagocytes and to release histamine from mast cells.Storage/Stability : Shipped at 4°C. Store at -20°C for one year.