Supplier Page from Thermo Fisher Scientific for Nickel(II) nitrate hexahydrate, Puratronic:r, 99.9985% (metals basis)
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ergosterol, 98% from Thermo Fisher Scientific
Ethyl isonipecotate, 98+% from Thermo Fisher Scientific