Montelukast Impurity 40 CAS CATO-C4X-103140

Description

Compared with other compounds in its class, the molecular weight of 608.17 g/mol gives Montelukast Impurity 40 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Montelukast Impurity 40 (CAS CATO-C4X-103140), a pharmacopoeial impurity reference standard (molecular formula C35H35ClNO3SNa, MW 608.17 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a salt form, a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Montelukast Impurity 40 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 608.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

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 certified reference material (CRM), Montelukast Impurity 40 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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com