| CAS号 | 537-55-3 |
| 产品名称 | N-乙酰-酪氨酸 | 化学名 | N-Acetyl-L-Tyrosine | 型号 | AJI97 |
| 用途 | 医药中间体 | 外观性状 | 白色粉状结晶 | 重金属 | 5（ppm） |
| 规格 | 25kg/桶 | CAS | 537-55-3 | 含量 | 99 |
| ITEM | STANDARD |
Description | White crystals or crystalline powder |
Identification | Infrared absorption spectrum |
| Specific rotation(a)D20° | +46.5°~ +49.0° |
| Stateof solution (transmittance) | ≥96.0% |
| Chioride(CL) | ≤0.020% |
| Ammonium(NH4) | ≤0.02% |
| Heavy metals(pb) | ≤10ppm |
| Iron(Fe) | ≤10ppm |
| Sulfate(SO4) | ≤0.020% |
| Arsenic(As203) | ≤2ppm |
| Loss on drying | ≤0.5% |
| Residue on ignition (Suifated) | ≤0.1% |
| Assay | 99.0 ~ 101.0% |
| Tyrosine | ≤0.1% |
| PH | 2.0 ~ 3.0 |
