Supplier Page from Thermo Fisher Scientific for Dowex® 1X8, 100-200 mesh, ion-exchange resin
4-Ethylphenol, 97% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific
Ethyl picolinate, 99% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific