Supplier Page from Thermo Fisher Scientific for 2,5-Dibromopyridine, 97%
1-Fluoro-2-nitrobenzene, 99% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethylene carbonate, 99+% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific