Supplier Page from Thermo Fisher Scientific for 1-Nitroso-2-naphthol-3,6-disulfonic acid, disodium salt hydrate, pure, indicator grade
Ethyl 3-aminobenzoate, methanesulfonic acid salt, 98% from Thermo Fisher Scientific
Ethyl butyrylacetate, 98% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific