项目 生物学级 |
(BR) |
外观Appearance : 白色晶体或结晶粉末 |
含量(以干基计on dried substance)): 98-102% |
比旋光Specific optical rotation[a]20D: +14.5~+16.5 |
透光率: ≥95% |
干燥失重Loss on drying (105℃ 4hr): ≤4.5% |
硫酸盐灰分Sulfated ash: ≤0.2% |
PH: 4.5-6.0 |
砷(以As计): ≤3ppm |
重金属Heavy metals (以Pb计): ≤10ppm |
灼烧残渣: ≤0.2% |
其他相关物: ≤2.0% |
5-苄基-3.6-二氧-2-哌嗪乙酸: ≤1.5% |
5-benzyl-3,6-dioxo-2-piperazineacetic acid |