ETB receptor antagonist [IRL-1038] Antagonist for the ETB receptor with a controversial pattern of activity.Product SpecificationAlternative Name: [Cys11-Cys15]-Endothelin-1 (11-21) Sequence: H-Cys-Val-Tyr-Phe-Cys-His-Leu-Asp-Ile-Ile-Trp-OH (Disulfide bonds between Cys1-Cys5) Formula: C68H92N14O15S2 MW: 1409.7 Quantity: *Sold as net peptide weight. Purity: ≥97% Long Term Storage: -20°C