Supplier Page from Thermo Fisher Scientific for Tin wire, 0.5mm (0.02in) dia, Puratronic:r, 99.9985% (metals basis)
Ethyl 2-mercaptoacetate, 99% from Thermo Fisher Scientific
Ethyl 4,4,4-trifluoroacetoacetate, 97% from Thermo Fisher Scientific
Ethyl benzoate, 99+% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific