产品分类 更多
产品名称 Product Name |
D-4-吡啶基丙氨酸 |
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CAS NO |
37535-50-5 |
数 量 Quantity |
1000 g |
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批 号 Batch No. |
HYA20110519 |
有效期 Valid Period |
3 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 |
白色至类白色粉末 White or off-white powder |
类白色粉末 Off-white powder |
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旋光度Specific Rotation[α]20 |
-34 ± 2º (C=1,1N HCL) |
-34.8º (C=1, 1N HCL) |
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干燥失重 Loss on drying |
≤0.5% |
0.25% |
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灼烧残渣 Residues On Ignition |
≤0.1% |
0.06% |
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纯 度 Assay(HPLC) |
≥98% |
99.75% |
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ee(HPLC) : |
≥99% |
99.5% |