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L-胱氨酸
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[产品名称]
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L-胱氨酸
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[分子式]
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C6H12N2O4S2
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[外观]
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白色结晶粉末
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含量
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98.5%~101.0%
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比旋光度
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-215°~-225°
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透光率
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≥98%
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氯化物 (Cl)
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≤0.020%
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铵含量 (NH4)
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≤0.02%
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硫酸盐 (SO4)
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≤0.020%
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铁 (Fe)
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≤20ppm
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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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≤1ppm
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干燥失重
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≤0.20%
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灼烧残渣
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≤0.10%
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PH值
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5.0~6.5
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