Dynorphin A ethylamide (1-9), The opioid activities were examined in the bioassays (guinea pig ileum, mouse vas deferens and rabbit vas deferens). the extension of the C-terminal in the peptide chain of [MeArg7,D-Leu8]-Dyn(1-8)-NH2 analogues by Arg is ineffective for increasing the kappa-opioid activities, kappa-receptor selectivity and/or analgesic effects of the peptides. References: Yoshino H, Arakawa Y, Nakazawa T, Kaneko T, Matsunaga M, Araki S, Ikeda M, Tsuchiya Y, Yamatsu K, Tachibana S. Synthesis and biological activity of [MeTyr1,MeArg7,D-Leu8]-dynorphin A(1-9)-NHEt and [D-Cys2-Cys5,MeArg7,D-Leu8]-dynorphin A(1-9)-NH2. Chem Pharm Bull (Tokyo). 1990 Aug;38(8):2274-6. PubMed PMID: 1980641.

纯度：≥98%

CAS：103614-28-4