N-Nitroso Dexchlorpheniramine impurity 9 CAS CATO-C4X-16119

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-16119
Molecular FormulaC16H19N3O
Molecular Weight269.34 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

N-Nitroso Dexchlorpheniramine impurity 9 CAS CATO-C4X-16119 chemical structure

Description

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.

CATO supplies N-Nitroso Dexchlorpheniramine impurity 9 (CAS CATO-C4X-16119), a pharmacopoeial impurity reference standard (molecular formula C16H19N3O, MW 269.34 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C16H19N3O, N-Nitroso Dexchlorpheniramine impurity 9 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 269.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

Molecular FormulaC16H19N3O
Molecular Weight269.34 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms3

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