Iguratimod Impurity 3 CAS 123664-52-8

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.123664-52-8
Molecular FormulaC15H15NO5S
Molecular Weight321.35 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Iguratimod Impurity 3 CAS 123664-52-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 321.35 g/mol gives Iguratimod Impurity 3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Iguratimod Impurity 3 (CAS 123664-52-8) is a certified pharmaceutical impurity reference standard with the molecular formula C15H15NO5S and a molecular weight of 321.35 g/mol.

Iguratimod Impurity 3 (C15H15NO5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; 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.

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

CATO manufactures Iguratimod Impurity 3 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 FormulaC15H15NO5S
Molecular Weight321.35 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1992
Nitrogen Atoms1
Sulfur Atoms1

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