Flurbiprofen Impurity 8 CAS 542-10-9

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.542-10-9
Molecular FormulaC6H10O4
Molecular Weight146.14 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Flurbiprofen Impurity 8 CAS 542-10-9 chemical structure

Description

The occurrence of Flurbiprofen Impurity 8 is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Flurbiprofen Impurity 8 (CAS 542-10-9) is a certified pharmaceutical impurity reference standard with the molecular formula C6H10O4 and a molecular weight of 146.14 g/mol.

Structurally, Flurbiprofen Impurity 8 (C6H10O4) 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 146.14 g/mol, it falls into the low-molecular-weight range.

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 FormulaC6H10O4
Molecular Weight146.14 g/mol
Purity>95%
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1957

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