Etoricoxib Impurity 8 , 0.95 , 【1421227-97-5】
Molecular Formula: C22H20N2O4S
Formula Weight: 408.47
1,3-Dimethyl 2-(2-cyanopyridin-3-yl)propanedioate , 99% , 【2288709-76-0】
Molecular Formula: C11H10N2O4
Formula Weight: 234.21
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