Desmopressin Impurity 28 CAS CATO-C4X-221528

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-221528
Molecular FormulaC92H128N28O24S4
Molecular Weight2138.43 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Desmopressin Impurity 28 CAS CATO-C4X-221528 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 2138.43 g/mol gives Desmopressin Impurity 28 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Desmopressin Impurity 28 (CAS CATO-C4X-221528) is a certified pharmaceutical impurity reference standard with the molecular formula C92H128N28O24S4 and a molecular weight of 2138.43 g/mol.

The molecular framework of Desmopressin Impurity 28 (C92H128N28O24S4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

As a certified reference material (CRM), Desmopressin Impurity 28 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC92H128N28O24S4
Molecular Weight2138.43 g/mol
Purity≥95%
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)43.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms28
Sulfur Atoms4

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