Supplier Page from Thermo Fisher Scientific for Hydroxylamine-O-sulfonic acid, 97%
Ethyl chloroformate, 99% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific
Flavone, 99+% from Thermo Fisher Scientific
Fluorescein isothiocyanate isomer I, 90%, pure from Thermo Fisher Scientific