Supplier Page from Thermo Fisher Scientific for Tetra-n-butylammonium hydroxide, 40% w/w in methanol
4-Fluoroanisole, 99% from Thermo Fisher Scientific
Ethyl 4-bromocrotonate, 75%, tech from Thermo Fisher Scientific
Ethyl 4-dimethylaminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl indole-2-carboxylate, 97% from Thermo Fisher Scientific