Certificate of Analysis

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Fidaxomicin

Molecular Formula:	C₅₂H₇₄Cl₂O₁₈
Molecular Weight:	1058.04
CAS No.:	873857-62-6
Storage (From the date of receipt):	3 years -20°C powder
Storage (From the date of receipt):	1 year -80°C in solvent
Image:

HPLC: 99.76% purity | NMR: Consistent with structure