Supplier Page from Thermo Fisher Scientific for Trityl tetrakis(pentafluorophenyl)borate, 97%
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific
Ethylenediamine, 99% from Thermo Fisher Scientific