Hybutimibe Impurity 6 CAS CATO-C4X-25056

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-25056
Molecular FormulaC19H29FO3Si
Molecular Weight352.52 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Hybutimibe Impurity 6 CAS CATO-C4X-25056 chemical structure

Description

Hybutimibe Impurity 6 (CAS CATO-C4X-25056) is a certified pharmaceutical impurity reference standard with the molecular formula C19H29FO3Si and a molecular weight of 352.52 g/mol.

The molecular framework of Hybutimibe Impurity 6 (C19H29FO3Si) is characterized by a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 FormulaC19H29FO3Si
Molecular Weight352.52 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity≥95%
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentF-containing

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