L-天门冬氨酸
分子量:133.10
CAS号:56-84-8
L-天门冬氨酸 |
AJI97 |
USP40 |
FCCIV |
性状 |
白色结晶性粉末 |
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--- |
鉴别 |
应符合规定 |
应符合规定 |
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含量 |
98.5%~101.0% |
98.5%~101.5% |
98.5%~101.5% |
pH |
2.5~3.5 |
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透光率 |
≥98.0% |
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干燥失重 |
≤0.20% |
≤0.5% |
≤0.25% |
炽灼残渣 |
≤0.10% |
≤0.1% |
≤0.1% |
氯化物 |
≤0.020% |
≤0.02% |
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重金属 |
≤10ppm |
≤10ppm |
≤10ppm |
铁盐 |
≤10ppm |
≤10ppm |
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硫酸盐 |
≤0.020% |
≤0.03% |
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铅 |
--- |
--- |
≤5ppm |
砷盐 |
≤1ppm |
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铵盐 |
≤0.02% |
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其他氨基酸 |
-- |
应符合规定 |
--- |
热源 |
应符合规定 |
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比旋度 |
+24.8°~+25.8° |
+24.0°~+26.0° |
+24.5°~+26.0° |
相关化合物 |
--- |
应符合规定 |
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