Supplier Page from Thermo Fisher Scientific for Silicon plate, 6.35mm (0.25in) thick, 99.999% (metals basis)
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Ethylenediamine, 99% from Thermo Fisher Scientific
Ethylenediaminetetraacetic acid, tetrasodium salt hydrate, 98%, pure from Thermo Fisher Scientific
Farnesol, 96%, mixture of isomers from Thermo Fisher Scientific