Purity: > 85% by SDS - PAGE Format: Liquid. In Phosphate buffered saline (pH7.4), 10% glycerol. EDN3, also known as Endothelin 3, is endothelium-derived vasoconstrictor peptides. Recombinant human EDN3, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography techniques.