Supplier Page from Thermo Fisher Scientific for Sulfur trioxide-trimethylamine complex, 95%
2(2-Ethoxyethoxy)ethanol, 98+% from Thermo Fisher Scientific
3-Fluorobenzaldehyde, 98+% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific