Supplier Page from Thermo Fisher Scientific for µa,µa,µa',µa'-Tetrabromo-o-xylene, 97%
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl butyrate, 99% from Thermo Fisher Scientific
Ethyl cyanoacetate, 98+% from Thermo Fisher Scientific