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                              L-蘇氨酸

                              更新時(shí)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(wú)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(diǎn):255℃(分解)
                              [a]20/D: -28.3° (c=6, H2O)
                              質(zhì)量標準: 外觀(guān)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(shí))
                              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(wú)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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