产品分类 更多
产品名称 Product Name |
L-3-硝基苯丙氨酸 L-3-Nitrophenylalanine |
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CAS NO |
19883-74-0 |
数 量 Quantity |
10 Kg |
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批 号 Batch No. |
HYA20110730 |
有效期 Valid Period |
2 年 |
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检测项目 Test Item |
标准值 Specifications |
实测值 Test Results |
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外 观 Appearance |
类白色或微黄色粉末 Off-white or Faintly yellowpowder |
微黄色粉末 Faintly yellow powder |
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旋光度Specific Rotation[α]25 |
- 0.8 ~ - 2.5 º (C=1,H2O) |
- 1.7 º (C=1, H2O) |
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干燥失重 Loss on drying |
≤0.5% |
0.21% |
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灼烧残渣 Residues On Ignition |
≤0.1% |
0.05% |
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纯 度(HPLC) |
≥98% |
99.5% |
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光 学 e.e (HPLC) |
≥99% |
99.9% |