Teprenone impurity 55 CAS CATO-C4X-208155

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-208155
Molecular Formula4*C23H38O4
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Teprenone impurity 55 CAS CATO-C4X-208155 chemical structure

Description

As a process- or degradation-related impurity, Teprenone impurity 55 (CAS CATO-C4X-208155, C23H38O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Owing to a steroid core, a hydroxyl group, an ether linkage, Teprenone impurity 55 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 378.55 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

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 Formula4*C23H38O4
Molecular Weight378.55 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, keep sealed and dry
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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