Supplier Page from Thermo Fisher Scientific for Polyvinylsulfuric acid potassium salt, approx. M.W. 175,000
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, 99+% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific
Ethylene carbonate, 99+% from Thermo Fisher Scientific