Supplier Page from Thermo Fisher Scientific for Niobium slug, 3.175mm (0.125in) dia x 3.175mm (0.125in) length, 99.95% (metals basis excluding Ta)
1-Ethylpiperidine, 99% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl isonipecotate, 98+% from Thermo Fisher Scientific
Fluoranthene, 98% from Thermo Fisher Scientific