Ketoprofen Impurity 2

Chemical Name: (3-(1-methoxyethyl)phenyl)(phenyl)methanone

Synonym: (4S,6S)-4-(ethylamino)-N-(((4S,6S)-4-(ethylamino)-6-methyl-7,7-dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-yl)sulfonyl)-6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide, sodium salt