Certificate of Analysis

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Lenalidomide hemihydrate

Molecular Formula:	C₁₃H₁₃N₃O₃.1/2H₂O
Molecular Weight:	536.54
CAS No.:	847871-99-2
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: 99.18% purity | NMR: Consistent with structure