Supplier Page from Thermo Fisher Scientific for 2-Bromo-3-pyridinecarboxaldehyde, 96%
1-Fluoro-4-nitrobenzene, 99% from Thermo Fisher Scientific
4-Ethylphenol, 97% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyltriphenylphosphonium bromide, 98% from Thermo Fisher Scientific