Supplier Page from Thermo Fisher Scientific for 1,4-Naphthoquinone, 99%, contains up to 6% water
Dotriacontane, 97% from Thermo Fisher Scientific
Ethyl 2-oxocyclohexanecarboxylate, 95% from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific