Clarithromycin Impurity 23 CAS 470-12-2

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.470-12-2
Molecular FormulaC8H16O4
Molecular Weight176.21 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Clarithromycin Impurity 23 CAS 470-12-2 chemical structure

Description

CATO supplies Clarithromycin Impurity 23 (CAS 470-12-2), a pharmacopoeial impurity reference standard (molecular formula C8H16O4, MW 176.21 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C8H16O4, Clarithromycin Impurity 23 contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 176.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

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.

As a certified reference material (CRM), Clarithromycin Impurity 23 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC8H16O4
Molecular Weight176.21 g/mol
Purity>95%
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1957

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