Supplier Page from Thermo Fisher Scientific for Nickel foil, 0.25mm (0.01in) thick, Puratronic:r, 99.994% (metals basis)
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl benzoate, 99+% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific
Eugenol, 99% from Thermo Fisher Scientific