Features: 1) White or pale yellow crystalline powder 2) Widely used in making foods, drinks, tobacco, wine, medicine, chemicals and various cosmetics 3) Fine aroma chemical with stable and long lasting fragrance 4) Solubility (25°C): 1g completely soluble in 3ml 70%, or 2ml 95% ethanol makes transparent solution 5) Loss on drying: 0.5% (max.) 6) Melting point (25°C): 81-83°C 7) Residual lignite: 0.05% (max.) 8) Purity: above 99% 9) Heavy metal (Pb): 10ppm (max.) 10) As content: 3ppm (max.)