Supplier Page from Thermo Fisher Scientific for Fluorescein isothiocyanate isomer I, 90%, pure
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Ethyl oxamate, 99% from Thermo Fisher Scientific
Fluorobenzene, 99% from Thermo Fisher Scientific