Maxacalcitol Impurity 50 CAS CATO-C4X-151050

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-151050
Molecular FormulaC33H51O3PSi2
Molecular Weight582.90 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Maxacalcitol Impurity 50 CAS CATO-C4X-151050 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 582.90 g/mol gives Maxacalcitol Impurity 50 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Maxacalcitol Impurity 50 (CAS CATO-C4X-151050), a pharmacopoeial impurity reference standard (molecular formula C33H51O3PSi2, MW 582.90 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Maxacalcitol Impurity 50 (C33H51O3PSi2) contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 8.5, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 582.90 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC33H51O3PSi2
Molecular Weight582.90 g/mol
AppearancePale yellow to 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)8.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

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