Supplier Page from Thermo Fisher Scientific for Cobalt foil, 0.5mm (0.02in) thick, Puratronic:r, 99.995% (metals basis)
Estrone, 99+% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific
Eugenol, 99% from Thermo Fisher Scientific