ETA receptor antagonist [JKC-301] Very potent ETA antagonist.Product SpecificationSequence: cyclo(D-Asp-Pro-D-Ile-Leu-D-Trp) Formula: C32H44N6O7 MW: 624.7 Quantity: *Sold as net peptide weight. Purity: ≥96% Appearance: White to off-white lyophilized powder. Solubility: 1mg/ml completely soluble in 5% acetic acid. Long Term Storage: -20°C