Formulation: A crystalline solid
Formal Name: L-tyrosyl-D-alanylglycyl-L-phenylalanyl-D-leucine
Purity: ≥98%
Formula Markup: C29H39N5O7
Formula Weight: 569,7
Shelf life (days): 1460
CAS Number: 63631-40-3
Notes: DADLE is a peptide agonist of δ-opioid receptors (Ki = 2.06 nM in a radioligand binding assay).{37712} It is selective for δ-opioid over κ-opioid receptors (Ki = 16,000 nM) but also agonizes μ-opioid receptors (Ki = 13.8 nM). DADLE inhibits electrically induced contractions in guinea pig myenteric plexus and mouse and rat vas deferens (IC50s = 8.9, 0.73, and 134 nM, respectively). It induces analgesia in the tail-flick and hot plate tests in mice (ED50s = 0.03 and 0.027 nmol per animal, i.c.v.).{52196}