Supplier Page from Thermo Fisher Scientific for Paraformaldehyde, 4% w/v aq. soln., methanol free
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl picolinate, 99% from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific
Iron(III) acetylacetonate, 99+% from Thermo Fisher Scientific