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Certificate of Analysis

Ceftezole sodium

Molecular Formula:	C₁₃H₁₁N₈O₄S₃.Na
Molecular Weight:	462.46
CAS No.:	41136-22-5
Storage (From the date of receipt):	3 years -20°C powder
	1 year -80°C in solvent
Image:

HPLC: 99.83% purity | NMR: Consistent with structure