Risperidone Impurity 19 CAS 84162-82-3

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.84162-82-3
Molecular FormulaC14H15F2NO2
Molecular Weight267.27 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Risperidone Impurity 19 CAS 84162-82-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 267.27 g/mol gives Risperidone Impurity 19 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Risperidone Impurity 19 (CAS 84162-82-3) is a certified pharmaceutical impurity reference standard with the molecular formula C14H15F2NO2 and a molecular weight of 267.27 g/mol.

Risperidone Impurity 19 (C14H15F2NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), Risperidone Impurity 19 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 FormulaC14H15F2NO2
Molecular Weight267.27 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity>95%
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1981
Halogen ContentF-containing
Nitrogen Atoms1

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