Supplier Page from Thermo Fisher Scientific for Polyethyleneimine, M.W. 60,000, 50% w/w aq. soln
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Ethyl indole-2-carboxylate, 97% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, 99%, pure from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, tetrasodium salt hydrate, 98%, pure from Thermo Fisher Scientific