Supplier Page from Thermo Fisher Scientific for 4-(2'-Pyridylazo)resorcinol, 97+%, ACS reagent
2-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Ethyl 2-mercaptoacetate, 99% from Thermo Fisher Scientific
Ethyl benzoate, 99+% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, 99%, pure from Thermo Fisher Scientific