Supplier Page from Thermo Fisher Scientific for Praseodymium foil, 0.1mm (0.004in) thick, 99% (REO)
4-Ethylaniline, 99+% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, tetrasodium salt hydrate, 98%, pure from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific