Donkey anti-rat IgG (H&L), FITC (fluorescein-5-isothiocyanate) conjugated are secondary antibodies which bind to rat IgGs in immunological assays. FITC has Amax = 494 nm, Emax = 518 nm. luor to protein ratio is 3-7 moles FITC per mole antibody. Antibodies are affinity purified using solid phase rat IgG.