Supplier Page from Thermo Fisher Scientific for 1,4-Naphthoquinone, 99%, contains up to 6% water
2-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Ethyl indole-2-carboxylate, 97% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific