Dotinurad Impurity 261 CAS 2471978-72-8

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.2471978-72-8
Molecular FormulaC6H7NOS
Molecular Weight141.19 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Dotinurad Impurity 261 CAS 2471978-72-8 chemical structure

Description

CATO manufactures Dotinurad Impurity 261 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.

CATO supplies Dotinurad Impurity 261 (CAS 2471978-72-8), a pharmacopoeial impurity reference standard (molecular formula C6H7NOS, MW 141.19 g/mol) used for the identification and quantification of trace impurities in APIs.

Dotinurad Impurity 261 (C6H7NOS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

Physical & Chemical Properties

Molecular FormulaC6H7NOS
Molecular Weight141.19 g/mol
Purity≥95%
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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2000
Nitrogen Atoms1
Sulfur Atoms1

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