Supplier Page from Thermo Fisher Scientific for Germanium dioxide, 99.999%, (trace metal basis), electronic grade
1-Fluoro-4-nitrobenzene, 99% from Thermo Fisher Scientific
3-Fluorobenzyl bromide, 95% from Thermo Fisher Scientific
Ethyl butyrate, 99% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific