Supplier Page from Thermo Fisher Scientific for 4-(2-Pyridylazo)resorcinol monosodium salt monohydrate
9-Fluorenone, 99+% from Thermo Fisher Scientific
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific
Eugenol, 99% from Thermo Fisher Scientific