Supplier Page from Thermo Fisher Scientific for Aluminum foil, 0.1mm (0.004in) thick, Puratronic:r, 99.997% (metals basis)
Ethyl 3-aminobenzoate, methanesulfonic acid salt, 98% from Thermo Fisher Scientific
Ethyl 3-hydroxybutyrate, 99% from Thermo Fisher Scientific
Ethyl isonipecotate, 98+% from Thermo Fisher Scientific