Supplier Page from Thermo Fisher Scientific for 1-(4-Nitrophenylazo)-2-naphthol
1-Fluoro-4-nitrobenzene, 99% from Thermo Fisher Scientific
2-Ethylhexanoic acid, 99% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl L(-)-lactate, 97% from Thermo Fisher Scientific