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L-苏氨酸
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更新时间:2016-06-08  |  阅读:1180

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L-苏氨酸
L-Threonine
Cas 号: 【72-19-5 】 M D L: MFCD00064270
L-苏氨酸分子式: C4H9NO3; CH3CH(OH)CH(NH2)CO2H 分子量: 119.13
别 名: L-α-氨基-β-羟基丁酸,L-羟基丁氨酸,L-异赤丝藻氨基酸
(2S,3R)-2-Amino-3-hydroxybutyric acid
L-2-Amino-3-hydroxybutyric acid
98% 25g
98% 100g
98% 500g
98% 1kg
性 状: 白色结晶体或结晶粉末。溶于水,不溶于无水乙醇和氯仿等大多数有机溶剂。半数致死量(大鼠,腹腔)3098mg/kg.水中溶解度:90 g/L (20°C)
熔点:255℃(分解)
[a]20/D: -28.3° (c=6, H2O)
质量标准: 外观Appearance 白色结晶粉末
红外光谱鉴别Infrared spectrometry 和对照品匹配
纯度Purity ≥98.0% (以干基计)
干燥损失Loss on drying <0.2 % (1 g, 105°C, 3 小时)
重金属Heavy metals (as Pb) <10 ppm
比旋度Specific rotation [a]20/D -27.6°~ -29° (c=6, H2O)
痕量分析Trace analysis :
Cl < 200 ppm
SO4 < 200 ppm
溶解性Appearance of solution (2.5% 水溶液.) 无色透明
贮 存: 密封干燥保存。
用途 生化研究。制备组织培养基。
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