Supplier Page from Thermo Fisher Scientific for Niobium rod, 12.7mm (0.5in) dia, hard, 99.8% (metals basis)
Eicosanoic acid, 98% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, 99%, pure from Thermo Fisher Scientific
N-Ethylaniline, 98% from Thermo Fisher Scientific