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S. Harikrishna, K. Nagabhusana Reddy, Y. Suresh, M. Ramkrishna, M. Sarat, K. Kishore and C. Rambabu, “Low-level Determination of 4-Hydrazino BenzoicAcid in Drug Substance by High Performance Liquid Chromatography/Mass Spectrometry,” E-Journal of Chemistry, Vol. 7, No. 2, 2010, pp. 403-408.
http://dx.doi.org/10.1155/2010/616494

has been cited by the following article:

• TITLE: Low Level Determination of Genotoxic Impurity in Deferasirox Formulation

  AUTHORS: Pravish Kumar Tiwari, Padmakar Sathe, Navin Devadiga

  KEYWORDS: Deferasirox; Genotoxic; 4-Hydrazinobenzoic Acid; HPLC

  JOURNAL NAME: Journal of Analytical Sciences, Methods and Instrumentation, Vol.3 No.4, October 22, 2013

  ABSTRACT: 4-hydrazinobenzoic acid has been highlighted as one of the potential genotoxic impurities (PGIs). A sensitive HPLC method was developed and validated for the determination of 4-hydrazino benzoic acid in Deferasirox Tablet. HPLC method on Zorbax SB C18 column (250 × 4.6 mm i.d.), 5 μm, with UV Detector was used. The proposed method was cost effective, specific, linear, accurate, rugged and precise. The calibration curves showed good linearity over the concentration range of 0.5 μg/ml to 1.5 μg/ml with respect to the sample. The correlation coefficient was 0.999. Excellent recoveries of 102% were obtained at the level 0.5 μg/ml.