Maropitant Impurty 5(M6) CAS 683206-53-3

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.683206-53-3
Molecular FormulaC20H21NO
Molecular Weight291.39 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Maropitant Impurty 5(M6) CAS 683206-53-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 291.39 g/mol gives Maropitant Impurty 5(M6) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Maropitant Impurty 5(M6) (CAS 683206-53-3) is a certified pharmaceutical impurity reference standard with the molecular formula C20H21NO and a molecular weight of 291.39 g/mol.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Maropitant Impurty 5(M6) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 291.39 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC20H21NO
Molecular Weight291.39 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Nitrogen Atoms1

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