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 Research Article
												Quantification of 4-Oxiranyl Methoxy-9h-Carbazole a Genotoxic Impurity in Carvedilol Drug Substances by Lc-Ms 						
Author(s): M. Srinivasa Rao, Sumathi V. Rao, U.K.Ray, G.Sri Siva Kumar, Hemant Kumar Sharma and K.MukkantiM. Srinivasa Rao, Sumathi V. Rao, U.K.Ray, G.Sri Siva Kumar, Hemant Kumar Sharma and K.Mukkanti             
						
												
				 LC-MS multiple reaction monitoring (MRM) method had been evaluated for the determination of the very low level of  4-Oxiranylmethoxy-9H-Carbazole in drug substances such as Carvedilol (U.S. Pharmacopoeia (USP), 32NF-27,British  pharmacopoeia  (BP),  2009,  Martindale  35 th   edition)  This  4-Oxiranylmethoxy-9H-Carbazole  have  been  identi fi  ed  as  potential genotoxic impurity. LC-MS was found to be more promising and the limit of quanti fi  cation was 15  μ g/gm... Read More»
				  
												DOI:
												 10.4172/1948-593X.1000029 
																	  
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