Supplier Page from Thermo Fisher Scientific for Copper powder, spherical, -170+400 mesh, 99.9% (metals basis), Oxygen <1000ppm
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Ethyl butyrate, 99% from Thermo Fisher Scientific
Ethyl vinyl ether, 99%, stabilized from Thermo Fisher Scientific
Flavone, 99+% from Thermo Fisher Scientific