A zwitterionic buffering agent useful at pH 8.6-10.0, pKa 9.49 (25°C) pKa (20°C): 9.55 Appearance: Solid Boiling Point: 356.22°C (Predicted) Density: 1.23 g/cm3 (Predicted) Melting Point: >300°C PH Value: 8.6 - 10.0