Enkephalin [des-Tyr1, D-Pen2, Pen5]

Lyophilized powder may be stored at 4 °C for short-term only. Stable for 12 months at -20 °C. Reconstitute to nominal volume (see reconstitution instructions for peptides) and store at -20 °C. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Further dilutions can be made in assay buffer.<br>