Angiotensin I, human Description The decapeptide precursor to angiotensin II. Specifications Cas No. 70937-97-2 Product ID A5276 Product Name Angiotensin I, human Synonym Hypertensin I Formula Wt. 1296.49 Purity ≥98% Solubility Soluble in physiological saline. Store Temp +4oC