Supplier Page from Thermo Fisher Scientific for Iron slug, 3.175mm (0.125in) dia x 6.35mm (0.25in) length, 99.95% (metals basis)
Ethyl 4-chlorobutyrate, 97% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific