Supplier Page from Thermo Fisher Scientific for Erbium rod, 12.7mm (0.5in) dia, 99.9% (metals basis excluding Ta)
Ethyl carbazate, 97% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, 99%, pure from Thermo Fisher Scientific
N-Ethylaniline, 98% from Thermo Fisher Scientific