Zepto™ Non-Labeled Carboxyl Microspheres (2.5µm), 1ML
Bead Diameter: 2.5µm
Composition: Polystyrene
Surface Functionality: Carboxyl
Carboxyl Parking Area: ~2.5nm2/-COOH group
Bead Concentration: 1E+8 particles/ml (0.1% w/v)
Volume: 1ml in ddH2O

Fig 1. Typical side-scatter vs forward-scatter plot for Cytodiagnostics non-labeled microspheres.