Supplier Page from Thermo Fisher Scientific for Potassium chloride, 99.999%, (trace metal basis)
4-Ethylphenol, 97% from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, methanesulfonic acid salt, 98% from Thermo Fisher Scientific
Ethyl L(-)-lactate, 97% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific