Dequalinium Impurity 4 CAS 16355-92-3

Description

Compared with other compounds in its class, the molecular weight of 394.07 g/mol gives Dequalinium Impurity 4 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Dequalinium Impurity 4 (CAS 16355-92-3) is a certified pharmaceutical impurity reference standard with the molecular formula C10H20I2 and a molecular weight of 394.07 g/mol.

Dequalinium Impurity 4 (C10H20I2) contains iodine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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

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