Formula: C₁₅H₂₀O₄ CAS: 21293-29-8 EC No.: 244-319-5 M (Molar Mass): 264.32 g/mol D (Density): 1.190 g/cm³ mp (Melting Point): 160-163°C bp (Boiling Point): 120°C (0.05 mmHg) Optical Rotation: [α]²⁰D +430° (c=1 in ethanol)

Assay (HPLC): ≥ 98.0% Appearance: White to pale yellow crystalline powder. Identification (IR): Passes test. Identification (UV): Passes test. Melting Range: 160-163°C. Loss on Drying: ≤ 0.5% (at 105°C for 2 hours). Residue on Ignition: ≤ 0.1%. Heavy Metals (as Pb): ≤ 10 ppm. Related Substances (HPLC): Total impurities ≤ 1.0%, individual impurity ≤ 0.5%. Solubility (1% in ethanol): Clear, colorless to pale yellow solution. Specific Rotation: [α]²⁰D = +425° to +435° (c=1 in ethanol). Chromatographic Purity (TLC): Single spot.