Supplier Page from Thermo Fisher Scientific for 2,4-Difluorobenzenesulfonamide, 96%
1,2-Ethanedithiol, 95% from Thermo Fisher Scientific
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl phenylcyanoacetate, 97% from Thermo Fisher Scientific