Supplier Page from Thermo Fisher Scientific for Ammonium sodium phosphate tetrahydrate, 99%, for analysis
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Eicosanoic acid, 98% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, tetrasodium salt hydrate, 98%, pure from Thermo Fisher Scientific
Iron(III) acetylacetonate, 99+% from Thermo Fisher Scientific