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Certificate of Analysis

MMAE (Monomethyl auristatin E)

Product Name:	MMAE (Monomethyl auristatin E)
Catalog Number:	S7721
Batch Number:	S772101

Molecular Formula:	C₃₉H₆₇N₅O₇
Molecular Weight:	717.98
CAS No.:	474645-27-7
Storage (From the date of receipt):	3 years -20°C powder
	1 year -80°C in solvent
Image:

HPLC: 99.95% purity | NMR: Consistent with structure