| ≥1 piece |
| Identification: Positive Appearance: White Crystalline powder Solubility: Freely Soluble in water, very slightly soluble in ethanol Appearance of solution: Clear and Colorless Specific Optical Rotation: -15.5°~-17.5° Assay: 98%~101% (HPLC) |
Heavy metals: ≤10ppm Arsenic: ≤2ppm Ammonium(NH4): ≤200mg/kg Chlorides:≤200mg/kg Sulphates:≤300mg/kg Iron(Fe): ≤10mg/kg Loss on drying: ≤0.5% Ash: ≤0.1% |
Health Benefits: