Testosterone Impurity 23 CAS CATO-C4X-132623

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-132623
Molecular FormulaC29H38O2
Molecular Weight418.61 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Testosterone Impurity 23 CAS CATO-C4X-132623 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 418.61 g/mol gives Testosterone Impurity 23 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Testosterone Impurity 23 (CAS CATO-C4X-132623), a pharmacopoeial impurity reference standard (molecular formula C29H38O2, MW 418.61 g/mol) used for the identification and quantification of trace impurities in APIs.

Testosterone Impurity 23 (C29H38O2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

As a certified reference material (CRM), Testosterone Impurity 23 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 FormulaC29H38O2
Molecular Weight418.61 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at room temperature, protect from light
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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

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