Supplier Page from Thermo Fisher Scientific for (2R,3R)-(+)-Bis(diphenylphosphino)butane, 98%
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
4-Fluoroaniline, 98% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific
Ethylenediamine, 99% from Thermo Fisher Scientific