Supplier Page from Thermo Fisher Scientific for Tetrabutylammonium hydroxide, 40 wt.% (1.5M) solution in water
4-Ethylphenol, 97% from Thermo Fisher Scientific
4'-Fluoroacetophenone, 99% from Thermo Fisher Scientific
Ethyl 3-pyridylacetate, 99% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific