Supplier Page from Thermo Fisher Scientific for Indium foil, 0.5mm (0.02in) thick, Puratronic:r, 99.9975% (metals basis)
3-Ethoxy-2-cyclohexen-1-one, 99% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Ethyl isonipecotate, 98+% from Thermo Fisher Scientific