Brexpiprazole Impurity 43 CAS 1420987-85-4

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.1420987-85-4
Molecular FormulaC20H20N2S2
Molecular Weight352.52 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Brexpiprazole Impurity 43 CAS 1420987-85-4 chemical structure

Description

Brexpiprazole Impurity 43 (C20H20N2S2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Brexpiprazole Impurity 43 (CAS 1420987-85-4) is a certified pharmaceutical impurity reference standard with the molecular formula C20H20N2S2 and a molecular weight of 352.52 g/mol.

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), Brexpiprazole Impurity 43 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 FormulaC20H20N2S2
Molecular Weight352.52 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms2
Sulfur Atoms2

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