90937-05-6 Angiotensin II, 4-amino-phe(6)- Angiotensin II, 5-L-isoleucine-6-(4-amino-L-phenylalanine)- 6-(4-Amino-phe)-angiotensin II p-Aminophenylalanine(6)-angiotensin II Angiotensin II, 4-aminophenylalanine(6)- Pap-angiotensin II CAS 90937-05-6

Description

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

90937-05-6 Angiotensin II, 4-amino-phe(6)- Angiotensin II, 5-L-isoleucine-6-(4-amino-L-phenylalanine)- 6-(4-Amino-phe)-angiotensin II p-Aminophenylalanine(6)-angiotensin II Angiotensin II, 4-aminophenylalanine(6)- Pap-angiotensin II (CAS 90937-05-6), molecular formula C53H74N12O12 and molecular weight 1071.23 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 90937-05-6 Angiotensin II, 4-amino-phe(6)- Angiotensin II, 5-L-isoleucine-6-(4-amino-L-phenylalanine)- 6-(4-Amino-phe)-angiotensin II p-Aminophenylalanine(6)-angiotensin II Angiotensin II, 4-aminophenylalanine(6)- Pap-angiotensin II is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 1071.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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