Calcipotriol Impurity 15 CAS 104846-63-1

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.104846-63-1
Molecular FormulaC34H58OSi
Molecular Weight510.91 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Calcipotriol Impurity 15 CAS 104846-63-1 chemical structure

Description

CATO supplies Calcipotriol Impurity 15 (CAS 104846-63-1), a pharmacopoeial impurity reference standard (molecular formula C34H58OSi, MW 510.91 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Calcipotriol Impurity 15 (C34H58OSi) is characterized by a hydroxyl group, an ether linkage, an aromatic ring system. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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), Calcipotriol Impurity 15 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 FormulaC34H58OSi
Molecular Weight510.91 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986

Related Calcipotriol Standards

Recommended Standards

Why CATO?