Estradiol Benzoate EP Impurity F CAS 95870-51-2

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.95870-51-2
Molecular FormulaC25H26O3
Molecular Weight374.47 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Estradiol Benzoate EP Impurity F CAS 95870-51-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 374.47 g/mol gives Estradiol Benzoate EP Impurity F distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Estradiol Benzoate EP Impurity F (CAS 95870-51-2), a pharmacopoeial impurity reference standard (molecular formula C25H26O3, MW 374.47 g/mol) used for the identification and quantification of trace impurities in APIs.

Estradiol Benzoate EP Impurity F (C25H26O3) 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.

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.

As a certified reference material (CRM), Estradiol Benzoate EP Impurity F 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 FormulaC25H26O3
Molecular Weight374.47 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, 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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984

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