Supplier Page from Thermo Fisher Scientific for Bromothymol Blue, 0.04% aqueous solution
Ergosterol, 98% from Thermo Fisher Scientific
Ethyl bromopyruvate, 80-85% from Thermo Fisher Scientific
Ethyl indole-2-carboxylate, 97% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific