Supplier Page from Thermo Fisher Scientific for Boron trifluoride-dimethanol complex, 50-52% w/w boron trifluoride
4-Fluorobenzyl chloride, 98% from Thermo Fisher Scientific
Ethyl chloroformate, 99% from Thermo Fisher Scientific
Ethyl phenylcyanoacetate, 97% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific