Acetyl-(Ala11·15)-Endothelin-1 (6-21) CAS 143113-45-5

Description

Compared with other compounds in its class, the molecular weight of 2006.32 g/mol gives Acetyl-(Ala11·15)-Endothelin-1 (6-21) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Acetyl-(Ala11·15)-Endothelin-1 (6-21) (CAS 143113-45-5), molecular formula C96H140N20O25S and molecular weight 2006.32 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Acetyl-(Ala11·15)-Endothelin-1 (6-21) is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 2006.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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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