Supplier Page from Thermo Fisher Scientific for Niobium powder, -325 mesh, Puratronic:r, 99.99% (metals basis excluding Ta), Ta :<500ppm
1,2-Ethanedithiol, 95% from Thermo Fisher Scientific
4'-Fluoroacetophenone, 99% from Thermo Fisher Scientific
Ethyl pyruvate, 98% from Thermo Fisher Scientific
Fluoranthene, 98% from Thermo Fisher Scientific