A potent agonist selective for delta opioid receptor (EC50 = 5.2nM). Exhibits anti-convulsant effects in vivo in rats, also used in nociceptive studies.Peptide Sequence:Tyr-D-Pen-Gly-Phe-D-Pen (2-5 disulfide bond)Solubility:H2OPrimary Target:Delta opioid receptorStorage and Stability:Lyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile buffer or dH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.