Supplier Page from Thermo Fisher Scientific for 2,4-Dihydroxybenzoic acid, 97%
9-Fluorenone, 99+% from Thermo Fisher Scientific
Ethyl benzoate, 99+% from Thermo Fisher Scientific
Ethyl N-piperazinecarboxylate, 99% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific