Norfloxacin Impurity 52 CAS 7251-32-3

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.7251-32-3
Molecular FormulaC12H22O6
Molecular Weight262.30 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Norfloxacin Impurity 52 CAS 7251-32-3 chemical structure

Description

The occurrence of Norfloxacin Impurity 52 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.

Norfloxacin Impurity 52 (CAS 7251-32-3) is a certified pharmaceutical impurity reference standard with the molecular formula C12H22O6 and a molecular weight of 262.30 g/mol.

The molecular framework of Norfloxacin Impurity 52 (C12H22O6) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

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 FormulaC12H22O6
Molecular Weight262.30 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1959

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