Dotinurad Impurity 81 CAS 82848-00-8

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.82848-00-8
Molecular FormulaC9H9NOS
Molecular Weight179.24 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Dotinurad Impurity 81 CAS 82848-00-8 chemical structure

Description

Dotinurad Impurity 81 (CAS 82848-00-8) is a certified pharmaceutical impurity reference standard with the molecular formula C9H9NOS and a molecular weight of 179.24 g/mol.

Based on its molecular formula C9H9NOS, Dotinurad Impurity 81 contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 179.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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), Dotinurad Impurity 81 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 FormulaC9H9NOS
Molecular Weight179.24 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1980
Nitrogen Atoms1
Sulfur Atoms1

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