Eldecalcitol Impurity 56 CAS 66774-82-1

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.66774-82-1
Molecular FormulaC18H32O
Molecular Weight264.45 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Eldecalcitol Impurity 56 CAS 66774-82-1 chemical structure

Description

As a certified reference material (CRM), Eldecalcitol Impurity 56 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.

CATO supplies Eldecalcitol Impurity 56 (CAS 66774-82-1), a pharmacopoeial impurity reference standard (molecular formula C18H32O, MW 264.45 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Eldecalcitol Impurity 56 (C18H32O) is characterized by 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC18H32O
Molecular Weight264.45 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1976

Related Eldecalcitol Standards

Recommended Standards

Why CATO?