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Certificate of Analysis

Alpelisib (BYL719)

Molecular Formula:	C₁₉H₂₂F₃N₅O₂S
Molecular Weight:	441.47
CAS No.:	1217486-61-7
Storage (From the date of receipt):	3 years -20°C powder
	1 year -80°C in solvent
Image:

HPLC: 99.9% purity | NMR: Consistent with structure