Supplier Page from Thermo Fisher Scientific for Methyl 4-(triphenylphosphonio)crotonate bromide, 98%
4-Ethylaniline, 99+% from Thermo Fisher Scientific
4-Fluoroanisole, 99% from Thermo Fisher Scientific
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethyl butyrate, 99% from Thermo Fisher Scientific