Supplier Page from Thermo Fisher Scientific for Chromium pieces, 3-8mm (0.1-0.31in), 99.99% (metals basis)
Ethyl 4-dimethylaminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethylenediamine, 99% from Thermo Fisher Scientific
Iron(III) acetylacetonate, 99+% from Thermo Fisher Scientific