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Certificate of Analysis

Afatinib free base

Molecular Formula:	C₂₄H₂₅ClFN₅O₃
Molecular Weight:	485.94
CAS No.:	439081-18-2
Storage (From the date of receipt):	3 years -20°C powder
	1 year -80°C in solvent
Image:

HPLC: 99.44% purity | NMR: Consistent with structure