Supplier Page from Thermo Fisher Scientific for Vanadium wire, 1.0mm (0.04in) dia, stress relieved, 99.7% (metals basis)
Ergosterol, 98% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethyl 4-dimethylaminobenzoate, 99+% from Thermo Fisher Scientific