Supplier Page from Thermo Fisher Scientific for Yttrium rod, 12.7mm (0.5in) dia, 99.9% (metals basis excluding Ta)
2-Ethylhexanoic acid, 99% from Thermo Fisher Scientific
Ethyl butyrate, 99% from Thermo Fisher Scientific
Ethyl phenylcyanoacetate, 97% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific