Supplier Page from Thermo Fisher Scientific for 3-Oxocyclopentanecarboxylic acid, 97%
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
2-Ethyl-1-hexanol, 99% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Ethylenediamine, 99% from Thermo Fisher Scientific