Bifonazole impurity 17 CAS CATO-C4X-156017

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-156017
Molecular FormulaC19H16
Molecular Weight244.33 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Bifonazole impurity 17 CAS CATO-C4X-156017 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 244.33 g/mol gives Bifonazole impurity 17 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Bifonazole impurity 17 (CAS CATO-C4X-156017), a pharmacopoeial impurity reference standard (molecular formula C19H16, MW 244.33 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a polycyclic aromatic system, Bifonazole impurity 17 is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 244.33 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 FormulaC19H16
Molecular Weight244.33 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

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