Supplier Page from Thermo Fisher Scientific for Brooker's merocyanine dye
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl acrylate, 99.5%, stabilized from Thermo Fisher Scientific
Ethyl L(-)-lactate, 97% from Thermo Fisher Scientific