Supplier Page from Thermo Fisher Scientific for all-trans-Retinoic acid, 97%
1-Fluoro-4-nitrobenzene, 99% from Thermo Fisher Scientific
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethylene carbonate, 99+% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific