Supplier Page from Thermo Fisher Scientific for 3-[2-(Trimethylsilyl)ethynyl]benzeneboronic acid pinacol ester, 97%
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Ethyl cyanoacetate, 98+% from Thermo Fisher Scientific
Ethyl L(-)-lactate, 97% from Thermo Fisher Scientific
Ethylenediamine, 99% from Thermo Fisher Scientific