Alfaxalone Impurity 1 CAS CATO-C4X-32311

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-32311
Molecular FormulaC21H34O2
Molecular Weight318.49 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Alfaxalone Impurity 1 CAS CATO-C4X-32311 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 318.49 g/mol gives Alfaxalone Impurity 1 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Alfaxalone Impurity 1 (CAS CATO-C4X-32311) is a certified pharmaceutical impurity reference standard with the molecular formula C21H34O2 and a molecular weight of 318.49 g/mol.

Based on its molecular formula C21H34O2, Alfaxalone Impurity 1 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 318.49 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

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 FormulaC21H34O2
Molecular Weight318.49 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity>95%
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

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