Fluorescein isothiocyanate isomer I is an amine-reactive reagent for the FITC labeling of proteins, microsequencing of proteins, and peptides (HPLC).
F 7007 (OTTO) Fluorescein isothiocyanate isomer I, 90% (HPLC) Cas 3326-32-7 - used as fluorescent labeling reagent for proteins and for rapid identification of pathogens in fluorescent antibody technique.