Supplier Page from Thermo Fisher Scientific for 1,4-Naphthoquinone, 99%, contains up to 6% water
1-Fluoro-2-nitrobenzene, 99% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific