Supplier Page from Thermo Fisher Scientific for Bromothymol Blue sodium salt, 0.04% w/v aq. soln
1-Fluoro-4-nitrobenzene, 99% from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific