Supplier Page from Thermo Fisher Scientific for Copper foil, 0.1mm (0.004in) thick, Puratronic:r, 99.999% (metals basis)
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Eicosanoic acid, 98% from Thermo Fisher Scientific
Ethyl cyanoacetate, 98+% from Thermo Fisher Scientific
N-Ethylaniline, 98% from Thermo Fisher Scientific