Supplier Page from Thermo Fisher Scientific for Praseodymium foil, 1.0mm (0.04in) thick, 99.5% (REO)
Emodin, 95%, tech from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific
Ethyl cyanoacetate, 98+% from Thermo Fisher Scientific
Ethyl pyruvate, 98% from Thermo Fisher Scientific