Supplier Page from Thermo Fisher Scientific for Tantalum foil, 0.127mm (0.005in) thick, hard, 99.95% (metals basis)
2-Ethylhexanoic acid, 99% from Thermo Fisher Scientific
Ethyl 4-dimethylaminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl picolinate, 99% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific