Supplier Page from Thermo Fisher Scientific for 1-Nitroso-2-naphthol-3,6-disulfonic acid, disodium salt hydrate, pure, indicator grade
1-Fluoro-4-nitrobenzene, 99% from Thermo Fisher Scientific
4-Fluoroanisole, 99% from Thermo Fisher Scientific
4-Fluorobenzyl chloride, 98% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific