Supplier Page from Thermo Fisher Scientific for Tantalum powder, -100 mesh, Puratronic:r, 99.98% (metals basis), Nb 50ppm
1,2-Ethanedithiol, 95% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl 2-mercaptoacetate, 99% from Thermo Fisher Scientific
Ethyl isonipecotate, 98+% from Thermo Fisher Scientific