Supplier Page from Thermo Fisher Scientific for Poly(ethylene oxide), M.W. 250,000 to 400,000
3-Fluorobenzaldehyde, 98+% from Thermo Fisher Scientific
Ethyl cyanoformate, 99% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific