Efinaconazole Impurity 33 CAS CATO-C4X-124333

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-124333
Molecular FormulaC8H15NO5S
Molecular Weight237.27 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Efinaconazole Impurity 33 CAS CATO-C4X-124333 chemical structure

Description

CATO manufactures Efinaconazole Impurity 33 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.

Efinaconazole Impurity 33 (CAS CATO-C4X-124333) is a certified pharmaceutical impurity reference standard with the molecular formula C8H15NO5S and a molecular weight of 237.27 g/mol.

Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, Efinaconazole Impurity 33 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 237.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 FormulaC8H15NO5S
Molecular Weight237.27 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
Nitrogen Atoms1
Sulfur Atoms1

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