英文别名Etoricoxib Impurity 21; Etoricoxib Impurity 13; 2-((4-(5-chloro-6'-methyl-[2,3'-bipyridin]-3-yl)phenyl)sulfonyl)-1-(6-methylpyridin-3-yl)ethanone; 2-[[4-(5-chloro-6'-methyl[2,3'-bipyridin]-3-yl)phenyl]sulfonyl]-1-(6-methyl-3-pyridinyl)ethanone; 2-[4-(5-Chloro-6'-methyl[2,3'-bipyridin]-3-yl)benzene-1-sulfonyl]-1-(6-methylpyridin-3-yl)ethan-1-one; Ethanone, 2-[[4-(5-chloro-6'-methyl[2,3'-bipyridin]-3-yl)phenyl]sulfonyl]-1-(6-methyl-3-pyridinyl)- 
