Assay (by titration): ≥ 98.5%.
Appearance: White to off-white crystalline powder.
Identification (UV): λmax = 280 nm (in 0.01N HCl).
Melting Range: 211-212°C (with decomposition).
Specific Rotation: [α]²⁰D = -50° to -53° (c=2 in 0.5N HCl).
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%.
Adrenalone: ≤ 0.2%.
Noradrenaline: ≤ 0.1%.
pH (1% solution): 4.0-5.0.
Oxidation: Passes test (no pink color with potassium ferricyanide).
