Supplier Page from Thermo Fisher Scientific for Erbium rod, 12.7mm (0.5in) dia, 99.9% (metals basis excluding Ta)
Ethyl 2-bromoisobutyrate, 98% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific