Supplier Page from Thermo Fisher Scientific for Copper shot, 13mm (0.5in) dia, 99.99% (metals basis), oxygen free
3-Ethoxy-2-cyclohexen-1-one, 99% from Thermo Fisher Scientific
Ethyl 2-mercaptoacetate, 99% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific