Montelukast Impurity N2 CAS 162515-66-4

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.162515-66-4
Molecular FormulaC6H8OS
Molecular Weight128.19 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Montelukast Impurity N2 CAS 162515-66-4 chemical structure

Description

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

As a process- or degradation-related impurity, Montelukast Impurity N2 (CAS 162515-66-4, C6H8OS) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Montelukast Impurity N2 (C6H8OS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

As a certified reference material (CRM), Montelukast Impurity N2 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 FormulaC6H8OS
Molecular Weight128.19 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)2003
Sulfur Atoms1

Related Montelukast Standards

Recommended Standards

Why CATO?