Supplier Page from Thermo Fisher Scientific for Nickel(II) chloride hydrate, Puratronic:r, 99.995% (metals basis)
4-Ethylphenol, 97% from Thermo Fisher Scientific
Emodin, 95%, tech from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Iron(III) acetylacetonate, 99+% from Thermo Fisher Scientific