Formula: C₈H₁₈N₂O₄S (N,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic acid) CAS: 10191-18-1 EC No.: 233-468-1 M (Molar Mass): 213.25 g/mol D (Density): Not applicable (crystalline powder) mp (Melting Point): >300°C (decomposes) bp (Boiling Point): Not applicable Optical Rotation: Not applicable

Assay (Acid-Base Titration): ≥ 99.0 % Appearance: White crystalline powder. Identification (IR Spectrum): Passes test. pH (0.1M solution): 3.0 - 4.0 (free acid) Buffer Capacity (pKa at 25°C): ~7.1 Solubility: Soluble in water. Water Content (Karl Fischer): ≤ 0.5 % Absorbance (1M in H₂O, 1 cm): A260 ≤ 0.05, A280 ≤ 0.05 DNase/RNase/Protease Activity: None detected.