Mianserin Impurity 112 CAS 77117-76-1

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.77117-76-1
Molecular FormulaC19H20N2O
Molecular Weight292.37 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Mianserin Impurity 112 CAS 77117-76-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 292.37 g/mol gives Mianserin Impurity 112 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Mianserin Impurity 112 (CAS 77117-76-1) is a certified pharmaceutical impurity reference standard with the molecular formula C19H20N2O and a molecular weight of 292.37 g/mol.

Structurally, Mianserin Impurity 112 (C19H20N2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 292.37 g/mol, it falls into the medium-molecular-weight range. 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).

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

As a certified reference material (CRM), Mianserin Impurity 112 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 FormulaC19H20N2O
Molecular Weight292.37 g/mol
AppearancePale yellow to yellow crystalline powder
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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1979
Nitrogen Atoms2

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