Supplier Page from Thermo Fisher Scientific for Poly(propylene glycol), average M.W. 2.000
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
3-Ethoxy-2-cyclohexen-1-one, 99% from Thermo Fisher Scientific
Ethyl 2-mercaptoacetate, 99% from Thermo Fisher Scientific
Ethylenediamine, 99% from Thermo Fisher Scientific