Paricalcitol Impurity 25 CAS CATO-C4X-138725

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-138725
Molecular FormulaC19H34O2
Molecular Weight294.47 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Paricalcitol Impurity 25 CAS CATO-C4X-138725 chemical structure

Description

CATO manufactures Paricalcitol Impurity 25 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.

Paricalcitol Impurity 25 (CAS CATO-C4X-138725) is a certified pharmaceutical impurity reference standard with the molecular formula C19H34O2 and a molecular weight of 294.47 g/mol.

The molecular framework of Paricalcitol Impurity 25 (C19H34O2) 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.

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.

Physical & Chemical Properties

Molecular FormulaC19H34O2
Molecular Weight294.47 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing

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