Supplier Page from Thermo Fisher Scientific for Titanium slug, 6.35mm (0.25in) dia x 6.35mm (0.25in) length, Puratronic:r, 99.995% (metals basis)
1-Fluoro-4-nitrobenzene, 99% from Thermo Fisher Scientific
Ethanethiol, 99+% from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, 99+% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific