Flurbiprofen Impurity 173 CAS CATO-C4X-1444173

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-1444173
Molecular FormulaC11H20O5
Molecular Weight232.27 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Flurbiprofen Impurity 173 CAS CATO-C4X-1444173 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.

Flurbiprofen Impurity 173 (CAS CATO-C4X-1444173) is a certified pharmaceutical impurity reference standard with the molecular formula C11H20O5 and a molecular weight of 232.27 g/mol.

Structurally, Flurbiprofen Impurity 173 (C11H20O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 232.27 g/mol, it falls into the medium-molecular-weight range.

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 FormulaC11H20O5
Molecular Weight232.27 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0

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