Appearance: White to light yellow crystalline powder or needle crystalline Odor: Similar to the taste of vanilla Assay: ≥ 99.0% Melting Point: 81.0℃ -83.0℃ Loss on drying: ≤ 0.5% Content of AS: ≤ 0.0003% Heavy Metal: ≤ 0.001% Residue on Ignition: ≤ 0.1% Packing: 25kg/50kg fibre drum