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Certificate of Analysis

Macitentan

Molecular Formula:	C₁₉H₂₀Br₂N₆O₄S
Molecular Weight:	588.27
CAS No.:	441798-33-0
Storage (From the date of receipt):	3 years -20°C powder
	1 year -80°C in solvent
Image:

HPLC: 99.98% purity | NMR: Consistent with structure