A highly potent octapeptide that acts as a selective and brain penetrating bioavailable u opioid receptor antagonist (IC50 = 3.5nM). Used in studies of reward systems and additions. Sequence:D-Phe-Cys-Tyr-D-Trp-Arg-Thr-Pen-Thr-NH2 (2-7 disulfide bond)Solubility:H2OPrimary Target:u Opioid receptorPrimary Target IC50:3.5nMStorage 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.
