Supplier Page from Thermo Fisher Scientific for Copper foil, 0.025mm (0.001in) thick, annealed, uncoated, 99.8% (metals basis)
Ethyl 2-oxocyclohexanecarboxylate, 95% from Thermo Fisher Scientific
Ethyl 4-bromocrotonate, 75%, tech from Thermo Fisher Scientific
Ethyl acrylate, 99.5%, stabilized from Thermo Fisher Scientific
Ethyl cyanoformate, 99% from Thermo Fisher Scientific