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Certificate of Analysis

Ribostamycin Sulfate

Molecular Formula:	C₁₇H₃₄N₄O₁₀.H₂SO₄
Molecular Weight:	552.55
CAS No.:	53797-35-6
Storage (From the date of receipt):	3 years -20°C powder
	1 year -80°C in solvent
Image:

HPLC: 98.12% purity | NMR: Consistent with structure