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Certificate of Analysis

HS-173

Molecular Formula:	C₂₁H₁₈N₄O₄S
Molecular Weight:	422.46
CAS No.:	1276110-06-5
Storage (From the date of receipt):	3 years -20°C powder
	1 year -80°C in solvent
Image:

HPLC: 99.08% purity | NMR: Consistent with structure