Supplier Page from Thermo Fisher Scientific for Copper shot, 0.6-0.8mm (0.02-0.03in), 99.5% (metals basis)
1,2-Ethanedithiol, 95% from Thermo Fisher Scientific
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific