Supplier Page from Thermo Fisher Scientific for Polyvinylpyrrolidone, average M.W. 1.300.000, K85-95
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
4-Ethylaniline, 99+% from Thermo Fisher Scientific
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ethyl carbazate, 97% from Thermo Fisher Scientific