Supplier Page from Thermo Fisher Scientific for Ytterbium foil, 0.1mm (0.004in) thick, 99.9% (REO)
4-Ethylphenol, 97% from Thermo Fisher Scientific
Ethyl 3-chloropropionate, 98% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific
Flavone, 99+% from Thermo Fisher Scientific