Certificate of Analysis

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Peficitinib (ASP015K)

Molecular Formula:	C₁₈H₂₂N₄O₂
Molecular Weight:	326.39
CAS No.:	944118-01-8
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: 99.69% purity | NMR: Consistent with structure