Supplier Page from Thermo Fisher Scientific for Ethynylmagnesium bromide, 0.5M solution in THF, AcroSeal®
Ergosterol, 98% from Thermo Fisher Scientific
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl bromopyruvate, 80-85% from Thermo Fisher Scientific