Dotinurad Impurity 195 CAS 50910-59-3 (free base)

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.50910-59-3 (free base)
Molecular FormulaC7H9NO3S
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Dotinurad Impurity 195 CAS 50910-59-3 (free base) chemical structure

Description

The occurrence of Dotinurad Impurity 195 is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Dotinurad Impurity 195 (CAS 50910-59-3 (free base)), a pharmacopoeial impurity reference standard (molecular formula C7H9NO3SHCl, MW 223.67 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C7H9NO3SHCl, Dotinurad Impurity 195 contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 223.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 195 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 FormulaC7H9NO3S HCl
Molecular Weight223.67 g/mol
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, water
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)3.0
UV AbsorptionUV-absorbing
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms1

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