Supplier Page from Thermo Fisher Scientific for 1-Phenyl-1H-pyrazole-4-carboxaldehyde, 98%
Ethyl (ethoxymethylene)cyanoacetate, 98% from Thermo Fisher Scientific
Ethyl isonipecotate, 98+% from Thermo Fisher Scientific
Ethyl phenylcyanoacetate, 97% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific