Supplier Page from Thermo Fisher Scientific for Cinnamyl bromide, 97%, predominantly trans
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethylenediamine, 99% from Thermo Fisher Scientific
meso-Erythritol, 99% from Thermo Fisher Scientific