Ursodeoxycholic Acid impurity 98 CAS CATO-C4X-142298

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-142298
Molecular FormulaC49H80O7
Molecular Weight781.16 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ursodeoxycholic Acid impurity 98 CAS CATO-C4X-142298 chemical structure

Description

Ursodeoxycholic Acid impurity 98 (C49H80O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Ursodeoxycholic Acid impurity 98 (CAS CATO-C4X-142298) is a certified pharmaceutical impurity reference standard with the molecular formula C49H80O7 and a molecular weight of 781.16 g/mol.

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.

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 FormulaC49H80O7
Molecular Weight781.16 g/mol
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

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