Flurbiprofen Impurity 61 CAS 95037-98-2

Purity >9%In StockPharmacopoeial Impurity Standards
CAS No.95037-98-2
Molecular FormulaC11H14FNO2
Molecular Weight211.23 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Flurbiprofen Impurity 61 CAS 95037-98-2 chemical structure

Description

The occurrence of Flurbiprofen Impurity 61 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Flurbiprofen Impurity 61 (CAS 95037-98-2) is a certified pharmaceutical impurity reference standard with the molecular formula C11H14FNO2 and a molecular weight of 211.23 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Flurbiprofen Impurity 61 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 211.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

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 FormulaC11H14FNO2
Molecular Weight211.23 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity>9%
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984
Halogen ContentF-containing
Nitrogen Atoms1

Related Flurbiprofen Standards

Recommended Standards

Why CATO?