Flow Cytometry Fluorescent Intensity Beads, Nominal Diameter:  4 µm,  Carboxyl Modified Polystyrene,  1.4 x 10E8 #/mL Level 11, Color: Red, Application: Flow cytometry, Particle Density: 1.05g/cm³, Refractive Index: 1.59 at 589nm (25©C), Shelf Life: Minimum of 12 months, Unit: 1 mL
FM4CR11