L-亮氨酸

品名： L-亮氨酸

分 子 式： C6H13NO2 

分 子 量： 131.17 

CAS   号 61-90-5

L-亮氨酸（发酵） CP2015 EP8 AJI92 USP24 USP38 高纯企标

含量 ≥98.5% 98.5-101.0% 99.0-100.5% 98.5-101.5% 98.5-101.5% ≥98.5%

酸度 5.5-6.5 / 5.5-6.5 5.5-7.0 5.5-7.0 /

比旋度[a]D20 +14.9°-+16.0° +14.5°-+16.5° +14.9°-+16.0° / / +14.9°-+16.0°

比旋度[a]D25 / / / +14.9°-+17.3° +14.9°-+17.3° /

透光 ≥98.0% clear & colorless ≤BY6 ≥98.0% / / ≥98.0%

氯化物 ≤0.02% ≤0.02% ≤0.02% ≤0.05% ≤0.05% ≤0.01%

铵盐 ≤0.02% ≤0.02% ≤0.02% / / /

硫酸盐 ≤0.02% ≤0.03% ≤0.02% ≤0.03% ≤0.03% ≤0.02%

铁盐 ≤10PPM ≤10PPM ≤10PPM ≤30PPM ≤30PPM /

重金属 ≤10PPM ≤10PPM ≤10PPM ≤15PPM ≤15PPM /

砷盐 ≤1PPM / ≤1PPM ≤1.5PPM / /

其他氨基酸 ≤0.5% / conforms / individual impurities≤0.5% total impurities≤2.0% individual impurities≤0.2% total impurities≤1.0%

茚三酮活性物质 / Impurity A at 570nm: ≤0.8%；For each impurity: ≤0.2%；Ammonium at 570nm:≤0.02%；Total impurities: ≤1.0% / /

干燥失重 ≤0.20% ≤0.50% ≤0.20% ≤0.2% ≤0.2% ≤0.20%

炽灼残渣 ≤0.10% ≤0.10% ≤0.10% ≤0.4% ≤0.4% /

有机挥发物 / / / conforms / /

内毒素 <25EU/g / / / / /