Supplier Page from Thermo Fisher Scientific for Brooker's merocyanine dye
1-Fluoro-2-nitrobenzene, 99% from Thermo Fisher Scientific
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific