Dotinurad Impurity 182 CAS CATO-C4X-2494182

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-2494182
Molecular FormulaC11H10Cl2O3
Molecular Weight261.10 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Dotinurad Impurity 182 CAS CATO-C4X-2494182 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 261.10 g/mol gives Dotinurad Impurity 182 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Dotinurad Impurity 182 (CAS CATO-C4X-2494182), a pharmacopoeial impurity reference standard (molecular formula C11H10Cl2O3, MW 261.10 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Dotinurad Impurity 182 (C11H10Cl2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 261.10 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.

CATO manufactures Dotinurad Impurity 182 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC11H10Cl2O3
Molecular Weight261.10 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity≥95%
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentCl-containing

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