Neuropeptide Y, Human A potent vasoconstrictor. Reversibly inhibits Ca2+-activated K+ channels in vascular smooth muscle cells. Peptide Sequence H-Tyr-Pro-Ser-Lys-Pro-Asp-Asn-Pro-Gly-Glu-Asp-Ala-Pro-Ala-Glu-Asp-Met-Ala-Arg-Tyr-Tyr-Ser-Ala-Leu-Arg-His-Tyr-Ile-Asn-Leu-Ile-Thr-Arg-Gln-Arg-Tyr-NH2 Form White to off-white lyophilized solid Formulation Supplied as trifluoroacetate salt. Sold on the basis of peptide content. Molar mass 4271.7 Protect from Moisture 是的 Purity ≥97% by HPLC Sold on the basis of peptide content 是的 Solubility 5% acetic acid Chemical formula C189H285N55O57S CAS number 90880-35-6 Merck USA index 14, 6485 Storage -20°C Ship Ambient Temperature Only Harmful S Phrase S: 36 Wear suitable protective clothing. R Phrase R: 20/21/22 Harmful by inhalation, in contact with skin and if swallowed.