Product detail
1. Quality standards
- Pharmaceutical grade (Chinese Pharmacopoeia standard):
- Content ≥40.0% (g/g); pH 6.5-7.5 (20% aqueous solution); chloride ≤0.005%, sulfate ≤0.01%.
- Food grade (FCC standard):
- Content ≥ 60%; pH 6.0-7.5; methanol ≤ 0.025%, heavy metals (in terms of Pb) ≤ 5 mg/kg.
- Pharmaceutical grade (Chinese Pharmacopoeia standard):
- Content ≥40.0% (g/g); pH 6.5-7.5 (20% aqueous solution); chloride ≤0.005%, sulfate ≤0.01%.
- Food grade (FCC standard):
- Content ≥ 60%; pH 6.0-7.5; methanol ≤ 0.025%, heavy metals (in terms of Pb) ≤ 5 mg/kg.
2. Physical properties
- Density: 1.32-1.33 g/cm³ (20℃); optical rotation: [α]²⁰/D +12.5° (1% aqueous solution).
- Storage conditions: light-proof and sealed, room temperature (10-30℃) or frozen (-20℃ to -80℃, DMSO solution).
- Density: 1.32-1.33 g/cm³ (20℃); optical rotation: [α]²⁰/D +12.5° (1% aqueous solution).
- Storage conditions: light-proof and sealed, room temperature (10-30℃) or frozen (-20℃ to -80℃, DMSO solution).
