Supplier Page from Thermo Fisher Scientific for Copper shot, 4-6mm (0.16-0.24in), Puratronic:r, 99.999% (metals basis)
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Ethyl 4-bromocrotonate, 75%, tech from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl butyrate, 99% from Thermo Fisher Scientific