Benzene, 2-ethoxy-1-methoxy-4-[2-(methylsulfonyl)ethyl]- , 0.95 , 【2489621-73-8】
Molecular Formula: C12H18O4S
Formula Weight: 258.33
Tiotropium EP Impurity C , 0.95 , 【136310-95-7】
Molecular Formula: C19H22BrNO3S2
Formula Weight: 456.41
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