Supplier Page from Thermo Fisher Scientific for 4,6-Dihydroxypyrazolo[3,4-d]pyrimidine, 99%
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Ethyl cyanoacetate, 98+% from Thermo Fisher Scientific
Ethylmercurithiosalicylic acid, sodium salt, 97.0-101.0% from Thermo Fisher Scientific
Fluorescein isothiocyanate isomer I, 90%, pure from Thermo Fisher Scientific