产品分类 更多
产品名称 Product Name |
L-2-硝基苯丙氨酸 L-2-Nitrophenylalanine |
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CAS NO |
19883-75-1 |
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生产日期 Manufacturing Date |
2011.05.24 |
批 号 Batch No. |
HYA20110524 |
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有效日期 Expire Date |
2013.05.23 |
数 量 Quantity |
25 kg |
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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 |
类白色粉末 Off-whitepowder |
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旋光度Specific Rotation[α]25 |
+ 50º± 3º (C=1,1N HCL) |
+52 º (C=1, 1N HCL) |
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干燥失重 Loss on drying |
≤1% |
0.35% |
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灼烧残渣 Residues On Ignition |
≤0.1% |
0.06% |
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纯 度 (HPLC) |
≥98% |
99.2% |
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e e 值 |
≥98% |
99.8% |