Formula: C₁₀H₁₂N₄O₅ CAS: 58-63-9 EC No.: 200-390-4 M (Molar Mass): 268.23 g/mol D (Density): 2.08 g/cm³ (approx.) mp (Melting Point): 218°C (decomposes) bp (Boiling Point): Not applicable Optical Rotation: [α]²⁰D -49° to -52° (c=1 in water)

Assay (HPLC): ≥ 99.0% Appearance: White crystalline powder. Identification (UV, Optical Rotation): Passes test (λmax ~ 248 nm in water). Specific Rotation: [α]²⁰/D = -49.0° to -52.0° (c=1 in water) Water Content (KF): ≤ 0.5% Residue on Ignition: ≤ 0.1% Heavy Metals (as Pb): ≤ 10 ppm Absorbance Ratio (A250/A260): 0.75–0.80 (in water)