FK 224 is a tachykinin receptor antagonist. References: Morimoto H, Murai M, Maeda Y, Yamaoka M, Nishikawa M, Kiyotoh S, Fujii T. FK 224, a novel cyclopeptide substance P antagonist with NK1 and NK2 receptor selectivity. J Pharmacol Exp Ther. 1992 Jul;262(1):398-402. PubMed PMID: 1378096.

纯度：≥98%

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