![Leu-Enkephalin [D-Ala2] - Echelon Biosciences](https://www.echelon-inc.com/wp-content/uploads/2019/11/310-84.jpg "310-84")
CAS Number: 64963-01-5
Molecular Weight: 569.29
Salt Form: TFA
Purity: >96%
Sequence (3-letter): Tyr-D-Ala-Gly-Phe-Leu-OH
Sequence (1-letter): YaGFL-OH
Storage: -20 °C or below
Leu-Enkephalin [D-Ala2] is a long-acting and potent analog of Leu-enkephalin that is resistant to enzymatic degradation. Enkephalins are endogenous neuropeptides which bind to the delta and mu opiod receptors and regulate nociception. Two forms of enkephalin exist: Leu-enkephalin (Tyr-Gly-Gly-Phe-Leu) and Met-enkephalin (Tyr-Gly-Gly-Phe-Met).
