| 详细说明 |
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| 品牌：同晟 | 产地：本地 | | 价格：1人民币/公斤 | 规格：完善 | 简要说明： 同晟牌的双甘氨肽 556-50-3产品：估价：1，规格：完善，产品系列编号：齐全 | |  | | | 详细介绍：
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Item
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Standard
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Analysis data
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Appearance
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White crystalline powder
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Conforms
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State of solution
(Transmittance)
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Clear and colorless
Not less than 95.0%
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Conforms
98.5%
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Chloride (Cl)
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Not more than 0.020%
|
0.018%
|
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Ammonium (NH4)
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Not more than 0.02%
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<0.02%
|
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Sulfate (SO4)
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Not more than 0.020%
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0.005%
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Iron (Fe)
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Not more than 30ppm
|
7ppm
|
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Heavy metal(Pb)
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Not more than 10ppm
|
8ppm
|
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Arsenic(As2O3)
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Not more than 1ppm
|
<1ppm
|
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Other amino acids
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Chromatographically
Not detectable
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Conforms
|
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Loss on drying
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Not more than 0.20%
|
0.17%
|
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Residue on ignition(sulfated)
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Not more than 0.15%
|
0.1%
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Assay
|
98.5 to100.5%
|
99.0%
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