Supplier Page from Thermo Fisher Scientific for Fluorescein isothiocyanate isomer I, 90%, pure
2-Ethylhexanoic acid, 99% from Thermo Fisher Scientific
3-Fluorobenzaldehyde, 98+% from Thermo Fisher Scientific
Ethyl indole-2-carboxylate, 97% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific