Supplier Page from Thermo Fisher Scientific for Hydroquinonesulfonic acid potassium salt, 98+%
4-Fluoroanisole, 99% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl chloroformate, 99% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, tetrasodium salt hydrate, 98%, pure from Thermo Fisher Scientific