Supplier Page from Thermo Fisher Scientific for 1-Propanephosphonic acid cyclic anhydride, 50 wt.% solution in dimethylformamide
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethylenediamine, 99% from Thermo Fisher Scientific
Flavone, 99+% from Thermo Fisher Scientific
N-Ethylaniline, 98% from Thermo Fisher Scientific