Supplier Page from Thermo Fisher Scientific for Tungsten foil, 0.05mm (0.002in) thick, 99.95% (metals basis)
1-Fluoro-4-nitrobenzene, 99% from Thermo Fisher Scientific
Ethyl butyrylacetate, 98% from Thermo Fisher Scientific
Ethyl L(-)-lactate, 97% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, 99%, pure from Thermo Fisher Scientific