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