Aztreonam impurity 91 CAS 80082-50-4

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.80082-50-4
Molecular FormulaC10H20N2O6S
Molecular Weight296.34 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Aztreonam impurity 91 CAS 80082-50-4 chemical structure

Description

Aztreonam impurity 91 (CAS 80082-50-4) is a certified pharmaceutical impurity reference standard with the molecular formula C10H20N2O6S and a molecular weight of 296.34 g/mol.

Aztreonam impurity 91 (C10H20N2O6S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

CATO manufactures Aztreonam impurity 91 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC10H20N2O6S
Molecular Weight296.34 g/mol
Purity97%+
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.)1979
Nitrogen Atoms2
Sulfur Atoms1

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