Supplier Page from Thermo Fisher Scientific for Praseodymium foil, 0.1mm (0.004in) thick, 99% (REO)
4-Ethylaniline, 99+% from Thermo Fisher Scientific
Ethyl butyrate, 99% from Thermo Fisher Scientific
Ethyl chloroacetate, 99% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific