empedoic Acid Impurity 5 CAS 2280838-78-8

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.2280838-78-8
Molecular FormulaC11H22O3
Molecular Weight202.29 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

empedoic Acid Impurity 5 CAS 2280838-78-8 chemical structure

Description

As a process- or degradation-related impurity, empedoic Acid Impurity 5 (CAS 2280838-78-8, C11H22O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, empedoic Acid Impurity 5 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 202.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

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 FormulaC11H22O3
Molecular Weight202.29 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1999

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