Supplier Page from Thermo Fisher Scientific for Yttrium foil, 0.025mm (0.001in) thick, 99.9% (REO)
Ethyl 2-hydroxyethyl sulfide, 98% from Thermo Fisher Scientific
Ethyl carbazate, 97% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific