Supplier Page from Thermo Fisher Scientific for Nickel foil, 0.05mm (0.002in) thick, annealed, 99+% (metals basis)
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethylene carbonate, 99+% from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific
meso-Erythritol, 99% from Thermo Fisher Scientific