Ethambutol Impurity 7(Mixture of Diastereomers) CAS 498-17-9

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.498-17-9
Molecular FormulaC10H20N2O4
Molecular Weight232.28 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ethambutol Impurity 7(Mixture of Diastereomers) CAS 498-17-9 chemical structure

Description

Based on its molecular formula C10H20N2O4, Ethambutol Impurity 7(Mixture of Diastereomers) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 232.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO supplies Ethambutol Impurity 7(Mixture of Diastereomers) (CAS 498-17-9), a pharmacopoeial impurity reference standard (molecular formula C10H20N2O4, MW 232.28 g/mol) used for the identification and quantification of trace impurities in APIs.

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 FormulaC10H20N2O4
Molecular Weight232.28 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1957
Nitrogen Atoms2

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