Supplier Page from Thermo Fisher Scientific for 1-Propanephosphonic acid cyclic anhydride, 50 wt.% solution in dimethylformamide
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
2-Ethyl-1,3-hexanediol, 99%, mixture of isomers from Thermo Fisher Scientific
Ethoxymethylenemalononitrile, 98% from Thermo Fisher Scientific
Flavone, 99+% from Thermo Fisher Scientific