Revefenacin impurity 85 CAS 82942-81-2

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.82942-81-2
Molecular FormulaC16H20N2OS
Molecular Weight288.41 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Revefenacin impurity 85 CAS 82942-81-2 chemical structure

Description

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.

Revefenacin impurity 85 (CAS 82942-81-2) is a certified pharmaceutical impurity reference standard with the molecular formula C16H20N2OS and a molecular weight of 288.41 g/mol.

Revefenacin impurity 85 (C16H20N2OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC16H20N2OS
Molecular Weight288.41 g/mol
Purity97%+
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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1980
Nitrogen Atoms2
Sulfur Atoms1

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