Supplier Page from Thermo Fisher Scientific for Tin foil, 0.5mm (0.02in) thick, 99.8% (metals basis)
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Estrone, 99+% from Thermo Fisher Scientific
Ethyl isonipecotate, 98+% from Thermo Fisher Scientific
Fluorescein isothiocyanate isomer I, 90%, pure from Thermo Fisher Scientific