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Stability indicating high performance liquid chromatographic method for the quantification of aliskiren hemifumarate and its related substances | Abstract

Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

ISSN: 0975-413X
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Abstract

Stability indicating high performance liquid chromatographic method for the quantification of aliskiren hemifumarate and its related substances

Author(s): Sampath Kumar Reddy Govindu*, Nagaraju Ch VS, Rajan ST, Eshwaraiah S, Kishore M and Chakravarthy IE

A reverse phase liquid chromatographic (RP-LC) method was developed for the quantification of the related impurities of Aliskiren Hemifumarate drug substance. The method was optimized using buffer (prepared by dissolving 2.72gr potassium di hydrogen phosphate and 7.0g 1-Octane sulphonoic acid sodium salt anhydrous taken in 1000mL milli-Q-water and then pH was adjusted to 2.7with dilute orthophospharic acid solution) taken along with Acetonitrile 70:30v/v as mobilephase-A, and Acetonitrile: water in the ratio of 90:10 v/v as mobile phase-B. The flow rate was set at 1.0mL min-1, wavelength at 230nm respectively and the column temperature was maintained at 45°C. The capability of stability indicating method developed was demonstrated by studying the degradation products generated during the forced degradation studies under the following conditions i) water hydrolysis, ii) at 75% relative humidity, iii) oxidative, iv) thermal v) photolytic, vi) acid, vii) base, and viii) photolytic degradation. The developed method can be used for the determination of synthetic and degradation impurities in the regular quality control analysis for the drug substance.


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