Letermovir Impurity 13 CAS CATO-C4X-291513

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-291513
Molecular FormulaC13H9BrFNO2
Molecular Weight310.12 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Letermovir Impurity 13 CAS CATO-C4X-291513 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 310.12 g/mol gives Letermovir Impurity 13 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Letermovir Impurity 13 (CAS CATO-C4X-291513), a pharmacopoeial impurity reference standard (molecular formula C13H9BrFNO2, MW 310.12 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, Letermovir Impurity 13 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 310.12 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).

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 Letermovir Impurity 13 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 FormulaC13H9BrFNO2
Molecular Weight310.12 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentF/Br-containing
Nitrogen Atoms1

Related Letermovir Standards

Recommended Standards

Why CATO?