Supplier Page from Thermo Fisher Scientific for Hafnium tert-butoxide, 99.9% (metals basis excluding Zr), Zr< 0.5%
DL-Ethyl 2-bromopropionate, 99% from Thermo Fisher Scientific
Ethyl phenylcyanoacetate, 97% from Thermo Fisher Scientific
Flavone, 99+% from Thermo Fisher Scientific
Iron(III) acetylacetonate, 99+% from Thermo Fisher Scientific