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分子式：C11H22O11.H2O
外观：白色单斜结晶。熔点：202°C。为还原糖。溶于水；不溶于醇。密封保存。
| 比旋光度 | +52.2° - +52.5° |
| 杂质最高含量(指标以%计) | |
| 澄清度试验 | 合格 |
| 水不溶物 | 0.005 |
| 灼烧残渣 | 0.05 |
| 酸度(以CH3COOH计) | 0.012 |
| 氯化物(Cl) | 0.002 |
| 硫酸盐(SO4) | 0.005 |
| 总氮量(N) | 0.005 |
| 铁(Fe) | 0.001 |
| 重金属(以Pb计) | 0.0005 |
| 脂肪 | 0.01 |
| 蔗糖 | 0.05 |
| 葡萄糖 | 0.05 |
| 糊精和淀粉 | 合格 |
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