产品分类 更多
产品名称 Product Name |
D-4-甲基苯丙氨酸 D-4-Methylphenylalanine |
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CAS NO |
49759-61-7 |
数 量 Quantity |
5 Kg |
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批 号 Batch No. |
HYA201106252 |
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 |
白色粉末
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旋光度Specific Rotation[α]20 |
+8 ± 2º (C=1,1N HCL) |
+ 7.9º (C=1,1N HCL) |
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干燥失重 Loss on drying |
≤0.2% |
0.07% |
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灼烧残渣 Residues On Ignition |
≤0.1% |
0.05% |
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纯 度 Assay(HPLC) |
≥98% |
99.2% |