Supplier Page from Thermo Fisher Scientific for Niobium foil, 1.0mm (0.04in) thick, annealed, 99.8% (metals basis)
2-Ethylhexanoic acid, 99% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethylene glycol dimethyl ether, 99+%, extra pure, stabilized with BHT from Thermo Fisher Scientific
Flavone, 99+% from Thermo Fisher Scientific