Roxatidine Impurity 43 CAS 100-83-4

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.100-83-4
Molecular FormulaC7H6O2
Molecular Weight122.12 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Roxatidine Impurity 43 CAS 100-83-4 chemical structure

Description

As a certified reference material (CRM), Roxatidine 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.

Roxatidine Impurity 43 (CAS 100-83-4) is a certified pharmaceutical impurity reference standard with the molecular formula C7H6O2 and a molecular weight of 122.12 g/mol.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Roxatidine Impurity 43 is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 122.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

Physical & Chemical Properties

Molecular FormulaC7H6O2
Molecular Weight122.12 g/mol
Purity>95%
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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