Supplier Page from Thermo Fisher Scientific for Sodium metaborate tetrahydrate, 98.5%, extra pure
1-Fluoro-4-nitrobenzene, 99% from Thermo Fisher Scientific
2-Ethyl-1-hexanol, 99% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethyl indole-2-carboxylate, 97% from Thermo Fisher Scientific