N-Nitroso N-Devaleryl Valsartan Methyl Ester Impurity 89 (mixture of isomers) CAS CATO-C4X-105789

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-105789
Molecular FormulaC20H22N6O3
Molecular Weight394.43 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

N-Nitroso N-Devaleryl Valsartan Methyl Ester Impurity 89 (mixture of isomers) CAS CATO-C4X-105789 chemical structure

Description

CATO manufactures N-Nitroso N-Devaleryl Valsartan Methyl Ester Impurity 89 (mixture of isomers) under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

As a process- or degradation-related impurity, N-Nitroso N-Devaleryl Valsartan Methyl Ester Impurity 89 (mixture of isomers) (CAS CATO-C4X-105789, C20H22N6O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Based on its molecular formula C20H22N6O3, N-Nitroso N-Devaleryl Valsartan Methyl Ester Impurity 89 (mixture of isomers) contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 394.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

Physical & Chemical Properties

Molecular FormulaC20H22N6O3
Molecular Weight394.43 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms6

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