Maxacalcitol Impurity 20 CAS 192573-35-6

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.192573-35-6
Molecular FormulaC23H44O4Si
Molecular Weight412.68 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Maxacalcitol Impurity 20 CAS 192573-35-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 412.68 g/mol gives Maxacalcitol Impurity 20 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Maxacalcitol Impurity 20 (CAS 192573-35-6) is a certified pharmaceutical impurity reference standard with the molecular formula C23H44O4Si and a molecular weight of 412.68 g/mol.

The molecular framework of Maxacalcitol Impurity 20 (C23H44O4Si) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), Maxacalcitol Impurity 20 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 FormulaC23H44O4Si
Molecular Weight412.68 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)2012

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