Supplier Page from Thermo Fisher Scientific for 1,2-Naphthoquinone, 95%, tech
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl 2-hydroxyethyl sulfide, 98% from Thermo Fisher Scientific
Ethyl cyanoacetate, 98+% from Thermo Fisher Scientific