Supplier Page from Thermo Fisher Scientific for Niobium foil, 0.127mm (0.005in) thick, annealed, 99.8% (metals basis)
4-Fluorobenzyl chloride, 98% from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, methanesulfonic acid salt, 98% from Thermo Fisher Scientific
Ethyl cyanoacetate, 98+% from Thermo Fisher Scientific