Angiotensin II (3-8) (human, rat, mouse) (trifluoroacetate salt)

Angiotensin II (3-8) is an endogenous C-terminal fragment of the peptide vasoconstrictor angiotensin II (Cay-17150). It selectively binds to the angiotensin 2 (AT2) over AT1 receptors (IC50s = 48.6 and >1,000 nM, respectively, in HEK293 cells expressing rat receptors). It also binds to AT4 receptors in bovine aortic endothelial cell membranes (IC50 = 1.6 nM). Angiotensin II (3-8) induces a positive chronotropic effect in isolated rat right atria (EC50 = 4.68 µM) and increases mean arterial pressure (MAP) in vivo in rats when administrated intracerebroventricularly at a dose of 1 pmol. It also increases latency to withdrawal in a tail-flick test in rats when administered by microinjection into the ventrolateral periaqueductal gray (vlPAG).Formal Name: 5-L-isoleucine-3-8-angiotensin II, trifluoroacetate salt. Synonyms: Angiotensin IV (human, rat, mouse). Molecular Formula: C40H54N8O8 . XCF3COOH. Formula Weight: 774.9. Purity: >95%. Formulation: (Request formulation change), A lyophilized powder. Solubility: Water: 1 mg/ml. SMILES: C[C@@H](CC)[C@]([H])(NC([C@@H](NC([C@H](C(C)C)N)=O)CC1=CC=C(C=C1)O)=O)C(N[C@@H](CC2=CNC=N2)C(N3[C@H](C(N[C@H](C(O)=O)CC4=CC=CC=C4)=O)CCC3)=O)=O.FC(F)(C(O)=O)F. InChi Code: InChI=1S/C40H54N8O8.C2HF3O2/c1-5-24(4)34(47-35(50)29(44-37(52)33(41)23(2)3)18-26-13-15-28(49)16-14-26)38(53)45-30(20-27-21-42-22-43-27)39(54)48-17-9-12-32(48)36(51)46-31(40(55)56)19-25-10-7-6-8-11-25,3-2(4,5)1(6)7/h6-8,10-11,13-16,21-24,29-34,49H,5,9,12,17-20,41H2,1-4H3,(H,42,43)(H,44,52)(H,45,53)(H,46,51)(H,47,50)(H,55,56),(H,6,7)/t24-,29-,30-,31-,32-,33-,34-,/m0./s1. InChi Key: FCDOCNHFFAOXJR-BPXNUQSUSA-N.