Application In Synthesis of 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole, is researched, Molecular C17H19N3O2S, CAS is 73590-85-9, about Design of experiment (DOE) utilization to develop a simple and robust reversed-phase HPLC technique for related substances’ estimation of omeprazole formulations. Author is Manranjan, Vayeda Chintan; Yadav, Devendra Singh; Jogia, Hitesh Amrutlal; Chauhan, Praful Lalitkumar.
A simple, fast, and sensitive reversed-phase HPLC method with UV detection was developed for the quantitation of omeprazole and its eleven related compounds (impurities) in pharmaceutical formulation using the Thermo Accucore C-18 (50 mm × 4.6 mm, 2.6 μm) column. The separation among all the compounds was achieved with a flow rate of 0.8 mL min-1 employing a gradient program of mobile phase A [0.08 M glycine buffer pH 9.0: acetonitrile; 95:05 (volume/volume)] and mobile phase B [acetonitrile: MeOH; 65:35 (volume/volume)]. The chromatog. detection was carried out at a wavelength of 305 nm. The method was validated for specificity, linearity, and recovery. The huskiness of the method was determined prior to validation using the Design of Experiments (DOE). The ANOVA anal. of DOE with a 95% confidence interval (CI) confirmed the buffer pH of mobile phase A and column temperature as significant Critical Method Parameters (CMPs).
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