Supplier Page from Thermo Fisher Scientific for Tungsten rod, 3.175mm (0.125in) dia, annealed, 99.95% (metals basis)
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl butyrate, 99% from Thermo Fisher Scientific
Fluorescein isothiocyanate isomer I, 90%, pure from Thermo Fisher Scientific