Supplier Page from Thermo Fisher Scientific for Acetaldehyde, 99.5%, extra pure, AcroSeal®
8-Hydroxyquinoline, ACS reagent from Thermo Fisher Scientific
D-Cystine, 98% from Thermo Fisher Scientific
D-Mannitol, 98+% from Thermo Fisher Scientific
L-Serine, 99% from Thermo Fisher Scientific