Supplier Page from Thermo Fisher Scientific for Vanadium slug, 11mm (0.43in) dia x 4mm (0.16in) thick, 99.8% (metals basis)
Ethyl 2-oxocyclohexanecarboxylate, 95% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific
Ethyl benzoate, 99+% from Thermo Fisher Scientific