Supplier Page from Thermo Fisher Scientific for p-Toluenesulfonic acid monohydrate, 97.5%, pure
2(2-Ethoxyethoxy)ethanol, 98+% from Thermo Fisher Scientific
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Ethyl 2-oxocyclohexanecarboxylate, 95% from Thermo Fisher Scientific
Ethyl acrylate, 99.5%, stabilized from Thermo Fisher Scientific