Angiotensin II

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MedKoo CAT#: 522373

CAS#: 4474-91-3

Description: Angiotensin II is an endogenous potent vasoconstrictor peptide. The amino acid sequence of angiotensin II is Asp-Arg-Val-Tyr-Ile-His-Pro-Phe | His-Leu. Angiotensin II increases blood pressure by stimulating the Gq protein in vascular smooth muscle cells (which in turn activates an IP3-dependent mechanism leading to a rise in intracellular calcium levels and ultimately causing contraction). In addition, angiotensin II acts at the Na/H exchanger in the proximal tubules of the kidney to stimulate Na reabsorption and H excretion which is coupled to bicarbonate reabsorption. This ultimately results in an increase in blood volume, pressure, and pH. Angiotensin II is degraded to angiotensin III by angiotensinases located in red blood cells and the vascular beds of most tissues. It has a half-life in circulation of around 30 seconds, whereas, in tissue, it may be as long as 15–30 minutes.

Chemical Structure

Angiotensin II
CAS# 4474-91-3

Theoretical Analysis

MedKoo Cat#: 522373
Name: Angiotensin II
CAS#: 4474-91-3
Chemical Formula: C50H71N13O12
Exact Mass: 1045.53451
Molecular Weight: 1046.2
Elemental Analysis: C, 57.40; H, 6.84; N, 17.41; O, 18.35

Price and Availability

Size Price Availability Quantity
5.0mg USD 150.0 2 Weeks
10.0mg USD 180.0 2 Weeks
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Synonym: Angiotensin II; Asp-Arg-Val-Tyr-Ile-His-Pro-Phe.

IUPAC/Chemical Name: (2S,5S,8S,11S,14S,17S)-2-((1H-imidazol-5-yl)methyl)-17-amino-5-((S)-sec-butyl)-1-((S)-2-(((S)-1-carboxy-2-phenylethyl)carbamoyl)pyrrolidin-1-yl)-14-(3-((diaminomethylene)amino)propyl)-8-(4-hydroxybenzyl)-11-isopropyl-1,4,7,10,13,16-hexaoxo-3,6,9,12,15-pentaazanonadecan-19-oic acid


InChi Code: InChI=1S/C50H71N13O12/c1-5-28(4)41(47(72)59-36(23-31-25-54-26-56-31)48(73)63-20-10-14-38(63)45(70)60-37(49(74)75)22-29-11-7-6-8-12-29)62-44(69)35(21-30-15-17-32(64)18-16-30)58-46(71)40(27(2)3)61-43(68)34(13-9-19-55-50(52)53)57-42(67)33(51)24-39(65)66/h6-8,11-12,15-18,25-28,33-38,40-41,64H,5,9-10,13-14,19-24,51H2,1-4H3,(H,54,56)(H,57,67)(H,58,71)(H,59,72)(H,60,70)(H,61,68)(H,62,69)(H,65,66)(H,74,75)(H4,52,53,55)/t28-,33-,34-,35-,36-,37-,38-,40-,41-/m0/s1

SMILES Code: O=C(O)C[C@H](N)C(N[C@@H](CCC/N=C(N)\N)C(N[C@@H](C(C)C)C(N[C@@H](CC1=CC=C(O)C=C1)C(N[C@@H]([C@@H](C)CC)C(N[C@@H](CC2=CN=CN2)C(N3[C@H](C(N[C@H](C(O)=O)CC4=CC=CC=C4)=O)CCC3)=O)=O)=O)=O)=O)=O

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, not in water

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 1046.2 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

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Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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