Angiotensin I is a purified peptide and mass spec standard for mass spectrometer calibration. It has an amino acid sequence of Asp-Arg-Val-Tyr-Ile-His-Pro-Phe-His-Leu. Angiotensin I peptide mass standard gives a monoisotopic mass of 1296.685 [M + H]+. The Angiotensin I peptide standard's average mass is 1297.5 [M + H]+. Conveniently dissolve the Angiotensin I calibration standard right in the tube with buffer or matrix solution, then analyze by MALDI-MS or ESI-MS.

Molecular Weight: 1295.7

Monoisotopic Mass [M+1]: 1296.685

CAS Number: 70937-97-2

Alternative Name: Hypertensin I