Supplier Page from Thermo Fisher Scientific for 12-Tungstophosphate hydrate, Reagent Grade
2-Ethylaniline, 98% from Thermo Fisher Scientific
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, tetrasodium salt hydrate, 98%, pure from Thermo Fisher Scientific