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Certificate of Analysis

Erlotinib

Molecular Formula:	C₂₂H₂₃N₃O₄
Molecular Weight:	393.44
CAS No.:	183321-74-6
Storage (From the date of receipt):	3 years -20°C powder
	1 year -80°C in solvent
Image:

HPLC: 99.99% purity | NMR: Consistent with structure