Thioctic acid impurity 59 CAS 28598-81-4

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.28598-81-4
Molecular FormulaC11H21BrO2
Molecular Weight265.19 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Thioctic acid impurity 59 CAS 28598-81-4 chemical structure

Description

Based on its molecular formula C11H21BrO2, Thioctic acid impurity 59 contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 265.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Thioctic acid impurity 59 (CAS 28598-81-4) is a certified pharmaceutical impurity reference standard with the molecular formula C11H21BrO2 and a molecular weight of 265.19 g/mol.

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.

CATO manufactures Thioctic acid impurity 59 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC11H21BrO2
Molecular Weight265.19 g/mol
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityContains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1965
Halogen ContentBr-containing

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