Baloxavir Impurity 143 CAS CATO-C4X-2108143

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-2108143
Molecular FormulaC14H8F2OS
Molecular Weight262.27 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Baloxavir Impurity 143 CAS CATO-C4X-2108143 chemical structure

Description

The occurrence of Baloxavir Impurity 143 is closely related to sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Baloxavir Impurity 143 (CAS CATO-C4X-2108143), a pharmacopoeial impurity reference standard (molecular formula C14H8F2OS, MW 262.27 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C14H8F2OS, Baloxavir Impurity 143 contains sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 262.27 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), Baloxavir Impurity 143 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 FormulaC14H8F2OS
Molecular Weight262.27 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentF-containing
Sulfur Atoms1

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