Supplier Page from Thermo Fisher Scientific for Tungsten foil, 1.0mm (0.04in) thick, 99.95% (metals basis)
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific