Supplier Page from Thermo Fisher Scientific for Tin foil, 2.0mm (0.08in) thick, Puratronic:r, 99.9985% (metals basis)
2-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, 99+% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific