KK 3 is a leu-enkephalin analogue found to produce analgesic effects on the spinal cord through depletion of substance P and mediation through kappa-opioid receptors. References: Takahashi M, Tokuyama S, Kaneto H. Release of substance P by intrathecal KK-3, a newly synthesized Leu-enkephalin derivative. Pharmacol Biochem Behav. 1989 Aug;33(4):843-6. PubMed PMID: 2482510.

纯度：≥98%

CAS：99803-32-4