Supplier Page from Thermo Fisher Scientific for Praseodymium foil, 1.0mm (0.04in) thick, 99.5% (REO)
Ethyl butyrate, 99% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific
N-Ethylaniline, 98% from Thermo Fisher Scientific