Cas No.: 121-33-5 EINECS No.: 204-465-2 Purity % (GC): >99.5% Appearance: White to light yellow acicular crystal or crystalline powder. Source: To be from natural 4-methyl guaiacol other than vanilla bean. Melting point:81-83℃ Weightlessness in dry state:≤ 0.5% Heavy metal(count as pb, mg/kg): ≤10 Arsenic content( mg/kg): ≤3 Solubility (25℃):Lg: 3ml (70%) akg lg: 2ml (95%) (in alcohol). Odor:Similar to the fragrance of vanilla bean.