Ursodeoxycholic Acid impurity 77 CAS CATO-C4X-142277

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-142277
Molecular FormulaC29H52O5Si2
Molecular Weight536.89 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ursodeoxycholic Acid impurity 77 CAS CATO-C4X-142277 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 536.89 g/mol gives Ursodeoxycholic Acid impurity 77 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Ursodeoxycholic Acid impurity 77 (CAS CATO-C4X-142277) is a certified pharmaceutical impurity reference standard with the molecular formula C29H52O5Si2 and a molecular weight of 536.89 g/mol.

Based on its molecular formula C29H52O5Si2, Ursodeoxycholic Acid impurity 77 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 536.89 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), Ursodeoxycholic Acid impurity 77 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 FormulaC29H52O5Si2
Molecular Weight536.89 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

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