Suryakala, DuvvuriSusarla, SivakumarRao, Bandlamudi Mallikarjuna2020-10-162020-10-162020-05Suryakala Duvvuri, Susarla Sivakumar, Rao Bandlamudi Mallikarjuna. LC-MS method development for the quantitation of potential genotoxic impurity 2-Methyl-6-nitro aniline in Telmisartan API. Journal of Applied Pharmaceutical Science. 2020 May; 2020 May: 092-0962231-3354http://imsear.searo.who.int/handle/123456789/210753Current work discloses the sensitive LC-MS/MS method development for the trace level determination of genotoxicimpurity 2-Methyl-6-nitro aniline in Telmisartan. 2-Methyl-6-nitro aniline was determined by LC-MS/MS methodin selected ion monitoring mode using LiChrospher RP-18 (100 × 4.6 mm) 5.0 µm column. Gradient technique wasapplied for the elution of analytes using acetonitrile (mobile phase A) and 0.01 M ammonium acetate buffer (mobilephase B) in different ratios. The gradient program (T/%B) was set as 0/5, 2.50/15, 5.00/30, 10.00/50, 15.00/95, and20.00/95. Developed method was validated as per International Conference on Harmonization guidelines. The limit ofdetection and limit of quantitation values found for 2-Methyl-6-nitro aniline were 0.05 and 0.1 µg/ml. The developedmethod serves as an upright tool in quality control for quantitation of 2-Methyl-6-nitro aniline impurity at trace levelsin Telmisartan.2-Methyl-6-nitro anilineTelmisartanGenotoxic impuritiesselected Ion Monitoring (SIM)ICH guidelinesJournal ArticleIndiaGITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India.