Supplier Page from Thermo Fisher Scientific for Gold foil, 0.1mm (0.004in) thick, Premion:r, 99.9975+% (metals basis)
1-Ethylpiperidine, 99% from Thermo Fisher Scientific
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl cyanoacetate, 98+% from Thermo Fisher Scientific