Dolutegravir Impurity 51 CAS CATO-C4X-162051

Purity 95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-162051
Molecular FormulaC13H16N2O6
Molecular Weight296.28 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Dolutegravir Impurity 51 CAS CATO-C4X-162051 chemical structure

Description

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.

Dolutegravir Impurity 51 (CAS CATO-C4X-162051) is a certified pharmaceutical impurity reference standard with the molecular formula C13H16N2O6 and a molecular weight of 296.28 g/mol.

The molecular framework of Dolutegravir Impurity 51 (C13H16N2O6) is characterized by a nitrogen-containing heterocyclic scaffold, an amide 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC13H16N2O6
Molecular Weight296.28 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity95%
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms2

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