Supplier Page from Thermo Fisher Scientific for Metaphosphoric acid, 39-43%, bal. NaPO{3} (Stabilizer)
Ethyl butyrate, 99% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, tetrasodium salt hydrate, 98%, pure from Thermo Fisher Scientific
Iron(III) acetylacetonate, 99+% from Thermo Fisher Scientific