Supplier Page from Thermo Fisher Scientific for 1-[3-(Dimethylamino)propyl]-3-ethylurea, 97%
Ethyl benzoate, 99+% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific