The FITC conjugate is supplied as 3 μg in 1.0 mL (3 μg/mL) of phosphate-buffered saline (PBS). The PE conjugate is supplied as 3 μg in 1.0 mL (3 μg/mL) of PBS. The PerCP-Cy5.5 conjugate is supplied as 2 μg in 1.0 mL (2 μg/mL) of PBS. The APC conjugate is supplied as 6 μg in 0.5 mL (12 μg/mL) of PBS. PBS contains gelatin and 0.1% sodium azide. Vials should be stored at 2° to 8°C. Conjugated forms should not be frozen and should be protected from prolonged exposure to light. Each reagent is stable for the period shown on the bottle label when stored as directed.