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DL-天门冬氨酸
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[产品名称]
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DL-天门冬氨酸
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[分子式]
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C4H7NO4
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[外观]
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White crystalline powder
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含量
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98.5％~101.0％
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透光率
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≥98.0％
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氯化物(Cl)
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≤0.02%
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铵含量
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≤0.02%
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硫酸盐
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≤0.02%
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铁
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≤10ppm
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重金属(Pb)
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≤10ppm
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砷含量(As2O3)
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≤2ppm
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干燥失重
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≤0.3％
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灼烧残渣
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≤0.1％
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PH值
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2.5~3.5
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