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              產品中心您現在的位置:首頁 > 產品展示 > sigma試劑 > 生化試劑 > L-亮氨酸

              L-亮氨酸

              更新時間:2016-06-05

              簡要描述:

              L-亮氨酸,純度高,品牌質量、實驗效果好,我們保持著薄利多銷的宗旨,提供給客戶高標準的生化試劑。

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              L-亮氨酸
              L-Leucine
              Cas 號: 【61-90-5 】 M D L: MFCD00002617
              L-亮氨酸分子式: C6H13NO2;(CH3)2CHCH2CH(NH2)CO2H 分子量: 131.7
              別 名: L-白氨酸,L-閃白氨基酸,氨基異己酸
              (S)-2-Amino-4-methylpentanoic acid
              L-Leu
              L-2-Amino-4-methylpentanoic acid
              99% 25g
              99% 100g
              99% 500g
              性 狀: 本品為白色結晶或結晶性粉末,幾乎無臭,無味,加熱到145-148℃時升華,293-295℃時分解。溶于水(25℃,24.26g/L)、乙酸(10.9g/L)、稀鹽酸、氫氧化堿和碳酸鹽溶液,微溶于醇(0.72g/L)。
              熔點: 286-288 °C
              質量標準: 外觀Appearance 白色結晶或結晶粉末
              紅外光譜鑒別Infrared spectrometry 和對照品匹配
              純度Purity 98.5 - 101.5 %
              干燥損失Loss on drying <0.2 % (105°C, 3 小時)
              重金屬Heavy metals (as Pb) <10 ppm
              其它氨基酸Other amino acids <0.5 % (TLC)
              比旋度Specific rotation [a]20/D +14.9° - +16° (c=4, 6 N HCl)
              痕量分析Trace analysis
              Cl < 200 ppm
              SO4 < 200 ppm
              NH4 < 200 ppm
              Fe < 10 ppm
              透光度Transmittance >95 % (c=10, 2 N HCl, 430 nm) 1 cm cell
              pH 5.5 - 6.5 (2.5% 水溶液,25°C)
              貯 存: 密封陰涼干燥保存。
              用途 生化研究。制備組織培養基。
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