Supplier Page from Thermo Fisher Scientific for 1-(2-Bromoethyl)-4-ethyl-1,4-dihydro-5H-tetrazol-5-one, 95%
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethyl bromopyruvate, 80-85% from Thermo Fisher Scientific
meso-Erythritol, 99% from Thermo Fisher Scientific