Testosterone Impurity 13 CAS 17305-49-6

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.17305-49-6
Molecular FormulaC19H24O2
Molecular Weight284.39 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Testosterone Impurity 13 CAS 17305-49-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 284.39 g/mol gives Testosterone Impurity 13 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Testosterone Impurity 13 (CAS 17305-49-6), a pharmacopoeial impurity reference standard (molecular formula C19H24O2, MW 284.39 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Testosterone Impurity 13 (C19H24O2) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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), Testosterone Impurity 13 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 FormulaC19H24O2
Molecular Weight284.39 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1961

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