Supplier Page from Thermo Fisher Scientific for Methyl 4-(triphenylphosphonio)crotonate bromide, 98%
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
4-Fluorobenzyl chloride, 98% from Thermo Fisher Scientific
Ethyl cyanoacetate, 98+% from Thermo Fisher Scientific
Ethylmercurithiosalicylic acid, sodium salt, 97.0-101.0% from Thermo Fisher Scientific