Supplier Page from Thermo Fisher Scientific for 1-Naphthaldehyde, 97%
DL-Glutamic acid monohydrate, 98+% from Thermo Fisher Scientific
Ethyl 2-oxocyclohexanecarboxylate, 95% from Thermo Fisher Scientific
Ethyl benzoate, 99+% from Thermo Fisher Scientific
Fumaric acid, 99+% from Thermo Fisher Scientific