Supplier Page from Thermo Fisher Scientific for Erbium(III) chloride hydrate, REacton:r, 99.99% (REO)
1-Ethynyl-1-cyclohexanol, 99+% from Thermo Fisher Scientific
2-Ethoxybenzamide, 97% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific