Supplier Page from Thermo Fisher Scientific for Copper foil, 0.025mm (0.001in) thick, Puratronic:r, 99.999% (metals basis)
2-Ethylaniline, 98% from Thermo Fisher Scientific
Ergosterol, 98% from Thermo Fisher Scientific
Ethyl 2-oxocyclohexanecarboxylate, 95% from Thermo Fisher Scientific