Ivacaftor Impurities

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Parent Drug Name Name of Impurity Catalogue No.
Ivacaftor N-(3, 5-Di-tert-butyl-2-hydroxyphenyl)-4-oxo-1, 4-dihydroquinoline-3-carboxamide VE0010211View CAS 873051-52-6
Ivacaftor 2, 4-Di-tert-butyl-5-nitrophenol VE0010210View CAS 873055-57-3
Ivacaftor 4-Hydroxyquinoline-3-carboxylic acid ethyl ester VE0010208View CAS 26892-90-0
Ivacaftor 5-Amino-2, 4-di-tert-butylphenol VE0010209View CAS 873055-58-4