Oseltamivir Impurity 22 CAS 1132659-97-2

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.1132659-97-2
Molecular FormulaC19H36NO9PS
Molecular Weight485.53 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Oseltamivir Impurity 22 CAS 1132659-97-2 chemical structure

Description

Oseltamivir Impurity 22 (C19H36NO9PS) contains an amide group, a sulfone group, a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. 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.

Oseltamivir Impurity 22 (CAS 1132659-97-2) is a certified pharmaceutical impurity reference standard with the molecular formula C19H36NO9PS and a molecular weight of 485.53 g/mol.

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 Oseltamivir Impurity 22 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 FormulaC19H36NO9PS
Molecular Weight485.53 g/mol
Purity≥95%
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)2.5
CAS Registry Year (est.)1989
Nitrogen Atoms1
Sulfur Atoms1

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