Supplier Page from Thermo Fisher Scientific for µa-Toluenesulfonyl chloride, 99%
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl benzoate, 99+% from Thermo Fisher Scientific