Supplier Page from Thermo Fisher Scientific for Niobium slug, 6.35mm (0.25in) dia x 12.7mm (0.50in) length, Puratronic:r, 99.99% (metals basis excluding Ta), Ta 300ppm
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ethyl acrylate, 99.5%, stabilized from Thermo Fisher Scientific
Ethyl indole-2-carboxylate, 97% from Thermo Fisher Scientific