Supplier Page from Thermo Fisher Scientific for Tungsten foil, 0.05mm (0.002in) thick, 99.95% (metals basis)
3-Fluorobenzyl bromide, 95% from Thermo Fisher Scientific
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethyl chloroformate, 99% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific