Formula: C₄H₇NO₄ CAS: 56-84-8 EC No.: 200-291-6 M (Molar Mass): 133.10 g/mol D (Density): 1.66 g/cm³ (approx.) mp (Melting Point): 270-271°C (decomposes) bp (Boiling Point): Not applicable Optical Rotation: [α]²⁰D +24.5° to +25.5° (c=2 in 6N HCl)

Assay (Ninhydrin, Titrimetric): ≥ 98.5 % Appearance: White crystalline powder. Identification (IR Spectrum, Optical Rotation): Passes test. Specific Rotation: [α]²⁰/D = +24.5° to +25.5° (c=2, 6N HCl) Solubility (0.5% in water): Clear, colorless solution. Chloride (Cl): ≤ 0.02 % Sulfate (SO₄): ≤ 0.03 % Heavy Metals (as Pb): ≤ 10 ppm Iron (Fe): ≤ 10 ppm Loss on Drying (at 105°C): ≤ 0.3 % Residue on Ignition: ≤ 0.1 % Biological Activity: Suitable for cell culture and enzymatic studies.