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L-蘇氨酸

更新時間:2016-06-08

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L-蘇氨酸
L-Threonine
Cas 號: 【72-19-5 】 M D L: MFCD00064270
L-蘇氨酸分子式: C4H9NO3; CH3CH(OH)CH(NH2)CO2H 分子量: 119.13
別 名: L-α-氨基-β-羥基丁酸,L-羥基丁氨酸,L-異赤絲藻氨基酸
(2S,3R)-2-Amino-3-hydroxybutyric acid
L-2-Amino-3-hydroxybutyric acid
98% 25g
98% 100g
98% 500g
98% 1kg
性 狀: 白色結晶體或結晶粉末。溶于水,不溶于無水乙醇和氯仿等大多數有機溶劑。半數致死量(大鼠,腹腔)3098mg/kg.水中溶解度:90 g/L (20°C)
熔點:255℃(分解)
[a]20/D: -28.3° (c=6, H2O)
質量標準: 外觀Appearance 白色結晶粉末
紅外光譜鑒別Infrared spectrometry 和對照品匹配
純度Purity ≥98.0% (以干基計)
干燥損失Loss on drying <0.2 % (1 g, 105°C, 3 小時)
重金屬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.) 無色透明
貯 存: 密封干燥保存。
用途 生化研究。制備組織培養基。
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