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Pharmacopeial Impurities

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Atorvastatin Related Compound I

CAS Number: 125971-95-1 Molecular Formula: C₄₀H₄₇FN₂O₅ Molecular Weight: 654.82 g/mol…

Atorvastatin tert-butyl ester

CAS Number: 134395-00-9 Molecular Formula: C₃₇H₄₃FN₂O₅ Molecular Weight: 614.76 g/mol…

Azithromycin impurity I

CAS Number: 172617-84-4 Molecular Formula: C37H70N2O12 Molecular Weight: 734.96 g/mol…

Azithromycin Impurity A

CAS Number: 76801-85-9 Molecular Formula: C₃₇H₇₀N₂O₁₂ Molecular Weight: 734.96 g/mol…

Benzocaine Impurity E

CAS Number: 62-23-7 Molecular Formula: C₇H₅NO₄ Molecular Weight: 167.12 g/mol…

Beta-lactose Anhydrous

CAS Number: 63-42-3 Molecular Formula: C₁₂H₂₂O₁₁ Molecular Weight: 342.3 g/mol …

Betahistine Impurity A

CAS Number: 100-69-6 Molecular Formula: C₇H₇N Molecular Weight: 105.14 g/mol…

Betahistine Impurity B

CAS Number: 103-74-2 Molecular Formula: C₇H₉NO Molecular Weight: 123.15 g/mol…

Betahistine Impurity C

CAS Number:5452-87-9 Molecular Formula: C₁₅H₁₉N₃ Molecular Weight: 241.34 g/mol…

Bisoprolol Impurity 1

CAS Number:177034-57-0 Molecular Formula: C₁₂H₁₈O₃ Molecular Weight: 210.27 g/mol…

Bisoprolol Impurity A

CAS Number:62572-93-4 Molecular Formula: C₁₃H₂₁NO₃ Molecular Weight: 239.32 g/mol…
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