Abrocitinib Impurity 56 CAS 1208319-36-1

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.1208319-36-1
Molecular FormulaC16H25N5O2S
Molecular Weight351.47 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Abrocitinib Impurity 56 CAS 1208319-36-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 351.47 g/mol gives Abrocitinib Impurity 56 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Abrocitinib Impurity 56 (CAS 1208319-36-1) is a certified pharmaceutical impurity reference standard with the molecular formula C16H25N5O2S and a molecular weight of 351.47 g/mol.

Abrocitinib Impurity 56 (C16H25N5O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), Abrocitinib Impurity 56 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 FormulaC16H25N5O2S
Molecular Weight351.47 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms5
Sulfur Atoms1

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