Supplier Page from Thermo Fisher Scientific for 2,2'-Bis(trifluoromethyl)benzidine, 97%
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific
Iron(III) acetylacetonate, 99+% from Thermo Fisher Scientific