Maxacalcitol Impurity 2 CAS 221696-55-5

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.221696-55-5
Molecular FormulaC26H42O4
Molecular Weight418.61 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Maxacalcitol Impurity 2 CAS 221696-55-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 418.61 g/mol gives Maxacalcitol Impurity 2 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Maxacalcitol Impurity 2 (CAS 221696-55-5), a pharmacopoeial impurity reference standard (molecular formula C26H42O4, MW 418.61 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Maxacalcitol Impurity 2 (C26H42O4) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 418.61 g/mol, it falls into the moderately-high-molecular-weight range. 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).

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.

As a certified reference material (CRM), Maxacalcitol Impurity 2 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 FormulaC26H42O4
Molecular Weight418.61 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2020

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