Supplier Page from Thermo Fisher Scientific for 1-Propanol, 99.5%, for analysis
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
Ethyl 2-oxocyclohexanecarboxylate, 95% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific