Supplier Page from Thermo Fisher Scientific for Niobium slug, 3.175mm (0.125in) dia x 6.35mm (0.25in) length, 99.95% (metals basis excluding Ta)
1-Ethylpiperidine, 99% from Thermo Fisher Scientific
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
DL-Ethyl 2-bromopropionate, 99% from Thermo Fisher Scientific
Ethyl pyruvate, 98% from Thermo Fisher Scientific