Brivaracetam Impurity 133 CAS CATO-C4X-2007133

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-2007133
Molecular FormulaC8H17NO2
Molecular Weight159.23 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Brivaracetam Impurity 133 CAS CATO-C4X-2007133 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.

Brivaracetam Impurity 133 (CAS CATO-C4X-2007133) is a certified pharmaceutical impurity reference standard with the molecular formula C8H17NO2 and a molecular weight of 159.23 g/mol.

Based on its molecular formula C8H17NO2, Brivaracetam Impurity 133 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 159.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC8H17NO2
Molecular Weight159.23 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)1.0
Nitrogen Atoms1

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