Supplier Page from Thermo Fisher Scientific for Copper foil, 0.675mm (0.027in) thick, annealed, 99.9% (metals basis)
4-Fluoroaniline, 98% from Thermo Fisher Scientific
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
meso-Erythritol, 99% from Thermo Fisher Scientific