Supplier Page from Thermo Fisher Scientific for 4-(2'-Pyridylazo)resorcinol, 97+%, ACS reagent
1-Fluoro-2-nitrobenzene, 99% from Thermo Fisher Scientific
2-Ethylaniline, 98% from Thermo Fisher Scientific
2-Fluorobenzaldehyde, 97% from Thermo Fisher Scientific
Ethyl 4-chlorobutyrate, 97% from Thermo Fisher Scientific